'+pages+''); $('.stream > div:odd').addClass('bgr_color'); updateHeight('#history'); }); window.activateTabArea = ensure(function(tab, areas){ var parsed = false; var parts = (areas || '').split('/'); window.fsonload = $.inArray('fs', parts) >= 0; if(fsonload){ parts.splice(parts.indexOf('fs'), 1); } var replayMode = false; if($.inArray('replay', parts)>=0){ replayMode = 'replay'; } var noSoundMode = false; if($.inArray('nosound', parts)>=0){ noSoundMode = 'nosound'; } if($.inArray('ns', parts)>=0){ noSoundMode = 'ns'; } var previewMode = null; if($.inArray('p', parts)>=0){ previewMode = 'p'; } if($.inArray('preview', parts)>=0){ previewMode = 'preview'; } if($.inArray('repeat', parts)>=0){ replayMode = 'repeat'; } if($.inArray('r', parts)>=0 || $.inArray('ro', parts)>=0){ replayMode = 'r'; } if(replayMode){ parts.splice(parts.indexOf(replayMode), 1); } if(noSoundMode){ parts.splice(parts.indexOf(noSoundMode), 1); } if(previewMode){ parts.splice(parts.indexOf(previewMode), 1); } if(previewMode){ if(!parts.length){ parts = ['1-14', '999:59']; } } var area = parts[0]; if(tab == 'history' && false){ var page = parseInt(area || '1') || 1; $.ajax({ url: 'https://login.wn.com/recent/json/?pp='+history_pp+'&skip='+history_pp*(page-1), dataType: 'jsonp', success: function(response){ $ensure(function(){ renderHistory(response, page); }); } }); return true; } if(tab == 'global_history' && false){ var page = parseInt(area || '1') || 1; globalHistory.fetchStream(page, '', function(){ updateHeight('#global_history'); }); return true; } if(tab == 'my_playlists' && false){ var page = parseInt(area || '1') || 1; myPlaylists.fetchStream(page, '', function(){ updateHeight('#my_playlists'); }); return true; } if(tab == 'my_videos' && false){ var page = parseInt(area || '1') || 1; myVideos.fetchStream(page, '', function(){ updateHeight('#my_videos'); }); return true; } if(tab == 'related_sites' && areas && matchPosition(areas)){ var seconds = parsePosition(areas); scrollRelated(seconds); return false; } if(matchPosition(area) || matchAction(area)){ parts.unshift('1'); area = parts[0]; } if(tab == 'expand' && area && area.match(/\d+/)) { var num = parseInt(area); if(num < 100){ //FIX ME. 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Load timeline page with ajax here } } else if(tab.match(/^playlist\d+$/)){ var playerId = parseInt(tab.substring(8)); var vp = videoplayers[playerId]; window.descriptionsholder = $('.descriptionsplace'); if(!vp) return; // why? no player? if(replayMode){ $('.replaycurrent'+playerId).attr('checked', true); vp.setReplayCurrent(true); } var playQueue = []; window.playQueue = playQueue; var playQueuePosition = 0; var playShouldStart = null; var playShouldStop = null; var parseList = function(x){ var items = x.split(/;|,/g); var results = []; for (i in items){ try{ var action = parseAction(vp, items[i]); if(!action.video){ if(window.console && console.log) console.log("Warning: No video for queued entry: " + items[i]); }else{ results.push(action); } }catch(e){ if(window.console && console.log) console.log("Warning: Can''t parse queue entry: " + items[i]); } } return results; }; var scrollToPlaylistPosition = function(vp){ var ppos = vp.getPlaylistPosition(); var el = vp.playlistContainer.find('>li').eq(ppos); var par = el.closest('.playlist_scrollarea'); par.scrollTop(el.offset().top-par.height()/2); } var updateVolumeState = function(){ if(noSoundMode){ if(noSoundMode == 'turn-on'){ clog("Sound is on, vsid="+vp.vsid); vp.setVolumeUnMute(); noSoundMode = false; }else{ clog("Sound is off, vsid="+vp.vsid); vp.setVolumeMute(); noSoundMode = 'turn-on'; } } } var playQueueUpdate = function(){ var playPosition = playQueue[playQueuePosition]; vp.playFromPlaylist(playPosition.video); scrollToPlaylistPosition(vp); playShouldStart = playPosition.start; playShouldStop = playPosition.stop; }; var playQueueAdvancePosition = function(){ clog("Advancing play position..."); playQueuePosition ++; while(playQueuePosition < playQueue.length && !playQueue[playQueuePosition].video){ playQueuePosition ++; } if(playQueuePosition < playQueue.length){ playQueueUpdate(); }else if(vp.getReplayCurrent()){ playQueuePosition = 0; playQueueUpdate(); vp.seekTo(playShouldStart); vp.playVideo(); }else{ vp.pauseVideo(); playShouldStop = null; playShouldStart = null; } }; function loadMoreVideos(playerId, vp, start, finish, callback){ var playlistInfo = playlists[playerId-1]; if(playlistInfo.loading >= finish) return; playlistInfo.loading = finish; $.ajax({ url: '/api/upge/cheetah-photo-search/query_videos2', dataType: 'json', data: { query: playlistInfo.query, orderby: playlistInfo.orderby, start: start, count: finish-start }, success: function(response){ var pl = vp.getPlaylist().slice(0); pl.push.apply(pl, response); vp.setPlaylist(pl); callback(); } }); } if(parts.length == 1 && matchDash(parts[0])){ var pl = vp.getActualPlaylist(); var vids = parseDash(parts[0]); parts = []; for(var i = 0; i < vids.length; i++){ playQueue.push({ 'video': pl[vids[i]-1], 'start': 0, 'stop': null }) } if(vids.length){ if(vids[vids.length-1]-1>=pl.length){ loadMoreVideos(playerId, vp, pl.length, vids[vids.length-1], function(){ if(fsonload){ activateTabArea(tab, parts[0]+'/fs'); }else{ activateTabArea(tab, parts[0]); } var pls = vp.getPlaylist(); vp.playFromPlaylist(pls[pls.length-1]); vp.playVideo(); scrollToPlaylistPosition(vp); }); return true; } } if(playQueue){ playQueueUpdate(); vp.playVideo(); parsed = true; playShouldStart = 0; } } if(previewMode){ var vids = []; var dur = 0; var pl = vp.getActualPlaylist(); area = parts[0]; if(parts.length == 1 && matchPosition(parts[0])){ vids = parseDash('1-'+pl.length); dur = parsePosition(parts[0]); parts = []; }else if(parts.length == 1 && matchDash(parts[0])){ vids = parseDash(parts[0]); dur = parsePosition("999:59"); parts = []; } if(parts.length == 2 && matchDash(parts[0]) && matchPosition(parts[1])){ vids = parseDash(parts[0]); dur = parsePosition(parts[1]); parts = []; } for(var i = 0; i < vids.length; i++){ playQueue.push({ 'video': pl[vids[i]-1], 'start': 0, 'stop': dur }) } if(playQueue){ playQueueUpdate(); vp.playVideo(); parsed = true; } } if(parts.length>1){ for(var i = 0; i < parts.length; i++){ var sel = findMatchingVideo(vp, parts[i]); if(sel){ playQueue.push({ 'video': sel, 'start': 0, 'stop': null }) } } if(playQueue){ playQueueUpdate(); vp.playVideo(); parsed = true; } }else if(area){ var sel = findMatchingVideo(vp, area); if(sel){ vp.playFromPlaylist(sel); playShouldStart = 0; parsed = true; } } if(fsonload || replayMode){ playShouldStart = 0; } if(document.location.search.match('at=|queue=')){ var opts = document.location.search.replace(/^\?/,'').split(/&/g); for(var o in opts){ if(opts[o].match(/^at=(\d+:)?(\d+:)?\d+$/)){ playShouldStart = parsePosition(opts[o].substr(3)) } if(opts[o].match(/^queue=/)){ playQueue = parseList(opts[o].substr(6)); if(playQueue){ playQueuePosition = 0; playQueueUpdate(); } } } } if(matchPosition(parts[1])){ playShouldStart = parsePosition(parts[1]); parsed = true; } if(matchAction(parts[1])){ var action = parseAction(vp, area+'/'+parts[1]); playShouldStart = action.start; playShouldStop = action.stop; parsed = true; } if(playShouldStart !== null && !playQueue.length){ playQueue.push({ video: vp.getCurrentVideo(), start: playShouldStart, stop: playShouldStop }); } if(playShouldStart != null){ setInterval(function(){ if(playShouldStop && vp.currentPlayer && vp.currentPlayer.getCurrentTime() > playShouldStop){ playShouldStop = null; if(vp.getCurrentVideo() == playQueue[playQueuePosition].video){ playQueueAdvancePosition(); }else{ playShouldStart = null; } } }, 500); vp.playerContainer.bind('videoplayer.player.statechange', function(e, state){ if(state == 'ended'){ // advance to the next video playQueueAdvancePosition(); } }); vp.playerContainer.bind('videoplayer.player.readychange', function(e, state){ if(state){ updateVolumeState(); if(playShouldStart !== null){ vp.seekTo(playShouldStart); playShouldStart = null; }else{ playShouldStop = null; // someone started other video, stop playing from playQueue } } if(fsonload) { triggerFullscreen(playerId); fsonload = false; } }); } } else if(tab.match(/^wiki\d+$/)){ if(firstTimeActivate){ load_wiki($('#'+tab), function(){ if(area){ var areaNode = $('#'+area); if(areaNode.length>0){ $('html, body').scrollTop(areaNode.offset().top + 10); return true; } } }); } } return parsed; }) window.activateTab = ensure(function(tab, area){ window.activeArea = null; if(tab == 'import_videos'){ if(area){ import_videos(area); }else{ start_import(); } return true; } if(tab == 'chat'){ update_chat_position($('.chat').eq(0)); window.activeArea = 'chat'; jQuery('.tabtrigger').offscreentabs('activateTab', 'chat'); return true; } if(tab in rev_names){ tab = rev_names[tab]; } if(tab.match(':')){ return false; } var sup = $('ul li a[id=#'+tab+']'); if(sup && sup.length>0){ window.activeArea = area; sup.first().click(); if(!window.activateTabArea(tab, area)){ window.activeArea = null; } window.activeArea = null; return true; }else{ var have_tabs = $('#playlist_menu li').length; if(tab.match(/^playlists?\d+$/)){ var to_add = +tab.substring(8).replace(/^s/,'')-have_tabs; if(to_add>0 && have_tabs){ add_more_videos(to_add); return true; } } } return false; }); window.currentPath = ensure(function(){ return window.lastHistory.replace(basepath, '').split('?')[0]; }); window.main_tab = window.main_tab || 'videos'; window.addHistory = ensure(function(path){ if(window.console && console.log) console.log("Adding to history: "+path); if(window.history && history.replaceState && document.location.hostname.match(/^(youtube\.)?(\w{2,3}\.)?wn\.com$/)){ if(path == main_tab || path == main_tab+'/' || path == '' || path == '/') { path = basepath; } else if( path.match('^'+main_tab+'/') ){ path = basepath + '/' + path.replace(main_tab+'/', '').replace('--','/'); } else { path = basepath + '/' + path.replace('--','/'); } if(document.location.search){ path += document.location.search; } if(window.lastHistory) { history.pushState(null, null, path); } else if(window.lastHistory != path){ history.replaceState(null, null, path); window.lastHistory = path; } } else{ path = path.replace('--','/'); if(path == main_tab || path == main_tab+'/' || path == '' || path == '/') { path = ''; } if(window.lastHistory != '/'+path){ window.location.hash = path? '/'+path : ''; window.lastHistory = '/'+path; } } }); $('.tabtrigger li a').live('click', ensure(function() { var tab = $(this).attr('id'); if(tab.substring(0,1) == '#'){ var name = tab.substring(1); if(name in menu_names){ name = menu_names[name][0]; } realTab = rev_names[name]; $('#'+realTab).show(); if(window.console && console.log) console.log("Triggering tab: "+name+(window.activeArea?" activeArea="+window.activeArea:'')); var path = name; if(window.activeArea){ path = path + '/' + window.activeArea; } if(tab.match(/#playlist\d+/) || tab.match(/#details\d+/)){ $('.multiple-playlists').show(); $('.related_playlist').show(); $('.longest_videos_playlist').show(); }else { $('.multiple-playlists').hide(); $('.related_playlist').hide(); $('.longest_videos_playlist').hide(); } // start the related script only when the tab is on screen showing if (tab.match(/related_sites/)) { if (mc) { mc.startCredits(); } } window.activeTab = realTab; addHistory(path); setTimeout(ensure(function(){ if(tab.match(/language--/)){ $('.tabtrigger').offscreentabs('activateTab', 'language'); } if(tab.match(/weather/)) { $('.tabtrigger').offscreentabs('activateTab', 'weather'); loadContinent(); } updateMenus(tab); updateHeight(); }), 10); } return false; })); }); -->

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• Capillary

Capillary

Capillaries (/ˈkæpᵻlɛriz/ in US; /kəˈpɪləriz/ in UK) are the smallest of a body's blood vessels (and lymph vessels) that make up the microcirculation. Their endothelial linings are only one cell layer thick. These microvessels, measuring around 5 to 10 micrometres (µm) in diameter, connect arterioles and venules, and they help to enable the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between the blood and the tissues surrounding them. Lymph capillaries connect with larger lymph vessels to drain lymph collected in the microcirculation.

During early embryonic development new capillaries are formed through vasculogenesis, the process of blood vessel formation that occurs through a de novo production of endothelial cells which then form vascular tubes. The term angiogenesis denotes the formation of new capillaries from pre-existing blood vessels and already present endothelium which divides.

Structure

Blood flows from the heart through arteries, which branch and narrow into arterioles, and then branch further into capillaries where nutrients and wastes are exchanged. The capillaries then join and widen to become venules, which in turn widen and converge to become veins, which then return blood back to the heart through the great veins.

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3:08

GCSE Biology Revision "Arteries, Veins and Capillaries"

• Order: Reorder
• Duration: 3:08
• Uploaded Date: 11 Sep 2017
• views: 474922

GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1f...

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https://wn.com/Gcse_Biology_Revision_Arteries,_Veins_And_Capillaries

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• published: 11 Sep 2017
• views: 474922

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Cardiovascular | Tunic Layers & Types of Capillaries

• Order: Reorder
• Duration: 22:04
• Uploaded Date: 07 Mar 2017
• views: 206242

Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! Join us in this video where we discuss the different types of capillaries, and the multiple tun...

Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! Join us in this video where we discuss the different types of capillaries, and the multiple tunic layers of blood vessels. We hope you enjoy this lecture and be sure to check out all of our social media pages and ways to support us below! References: ● Tucker, W. D. (2021, August 11). Anatomy, Blood Vessels. U.S. National Library of Medicine. Retrieved September 10, 2021, from https://www.ncbi.nlm.nih.gov/books/NBK470401/. ● Torres-Vázquez, J., Kamei, M., & Weinstein, B. M. (2003). Molecular distinction between arteries and veins. Cell and Tissue Research, 314(1), 43–59. https://doi.org/10.1007/s00441-003-0771-8 ● Le T, Bhushan V, Sochat M, Chavda Y, Zureick A. First Aid for the USMLE Step 1 2018. New York, NY: McGraw-Hill Medical; 2017 ● Mancini MC. Heart Anatomy. In: Berger S Heart Anatomy. New York, NY: WebMD.https://emedicine.medscape.com/article/905502-overview. ● Hill M. Cardiovascular System - Heart Histology. https://embryology.med.unsw.edu.au/embryology/index.php/Cardiovascular_System_-_Heart_Histology. ● Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. Elsevier Health Sciences; 2016 ● Leslie P. Gartner, James L. Hiatt. Color Textbook of Histology. New York (NY): Grune & Stratton Inc.; 2006 ● U. S. National Institutes of Health, National Cancer Institute. NIH SEER Training Modules - Classification & Structure of Blood Vessels. https://training.seer.cancer.gov/anatomy/cardiovascular/blood/classification.html. ● Marieb EN, Hoehn K. Anatomy & Physiology. Hoboken, NJ: Pearson; 2020. ● Boron WF, Boulpaep EL. Medical Physiology.; 2017. Join this channel to get access to perks: https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join APPAREL | https://www.amazon.com/s?k=ninja+nerd&ref=nb_sb_noss_2 DONATE PATREON | https://www.patreon.com/NinjaNerdScience PAYPAL | https://www.paypal.com/paypalme/ninjanerdscience SOCIAL MEDIA FACEBOOK | https://www.facebook.com/NinjaNerdlectures INSTAGRAM | https://www.instagram.com/ninjanerdlectures TWITTER | https://twitter.com/ninjanerdsci @NinjaNerdSci DISCORD | https://discord.gg/3srTG4dngW #ninjanerd #typesofcapillaries #tuniclayers

https://wn.com/Cardiovascular_|_Tunic_Layers_Types_Of_Capillaries

Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! Join us in this video where we discuss the different types of capillaries, and the multiple tunic layers of blood vessels. We hope you enjoy this lecture and be sure to check out all of our social media pages and ways to support us below! References: ● Tucker, W. D. (2021, August 11). Anatomy, Blood Vessels. U.S. National Library of Medicine. Retrieved September 10, 2021, from https://www.ncbi.nlm.nih.gov/books/NBK470401/. ● Torres-Vázquez, J., Kamei, M., & Weinstein, B. M. (2003). Molecular distinction between arteries and veins. Cell and Tissue Research, 314(1), 43–59. https://doi.org/10.1007/s00441-003-0771-8 ● Le T, Bhushan V, Sochat M, Chavda Y, Zureick A. First Aid for the USMLE Step 1 2018. New York, NY: McGraw-Hill Medical; 2017 ● Mancini MC. Heart Anatomy. In: Berger S Heart Anatomy. New York, NY: WebMD.https://emedicine.medscape.com/article/905502-overview. ● Hill M. Cardiovascular System - Heart Histology. https://embryology.med.unsw.edu.au/embryology/index.php/Cardiovascular_System_-_Heart_Histology. ● Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. Elsevier Health Sciences; 2016 ● Leslie P. Gartner, James L. Hiatt. Color Textbook of Histology. New York (NY): Grune & Stratton Inc.; 2006 ● U. S. National Institutes of Health, National Cancer Institute. NIH SEER Training Modules - Classification & Structure of Blood Vessels. https://training.seer.cancer.gov/anatomy/cardiovascular/blood/classification.html. ● Marieb EN, Hoehn K. Anatomy & Physiology. Hoboken, NJ: Pearson; 2020. ● Boron WF, Boulpaep EL. Medical Physiology.; 2017. Join this channel to get access to perks: https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join APPAREL | https://www.amazon.com/s?k=ninja+nerd&ref=nb_sb_noss_2 DONATE PATREON | https://www.patreon.com/NinjaNerdScience PAYPAL | https://www.paypal.com/paypalme/ninjanerdscience SOCIAL MEDIA FACEBOOK | https://www.facebook.com/NinjaNerdlectures INSTAGRAM | https://www.instagram.com/ninjanerdlectures TWITTER | https://twitter.com/ninjanerdsci @NinjaNerdSci DISCORD | https://discord.gg/3srTG4dngW #ninjanerd #typesofcapillaries #tuniclayers

• published: 07 Mar 2017
• views: 206242

4:26

Capillary Exchange and Edema, Animation

• Order: Reorder
• Duration: 4:26
• Uploaded Date: 30 Sep 2019
• views: 632052

(USMLE topics, cardiology) Mechanisms of capillary exchange: diffusion, transcytosis, filtration and reabsorption; cause of edema. Purchase a license to down...

(USMLE topics, cardiology) Mechanisms of capillary exchange: diffusion, transcytosis, filtration and reabsorption; cause of edema. Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images. ©Alila Medical Media. All rights reserved. Voice by Ashley Fleming All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The major purpose of the circulatory system is to bring oxygen and nutrients to body tissues and remove wastes. This exchange happens in the smallest blood vessels called the capillaries. The walls of capillaries consist of a single layer of endothelial cells. Substances move between the blood and surrounding tissue in several ways: - Diffusion through the plasma membranes of endothelial cells: the hydrophobic nature of the cell membrane makes it intrinsically permeable to small lipid-soluble molecules and small gases. Oxygen moves down its concentration gradient, from the blood to the surrounding tissue, while carbon dioxide diffuses in the reverse direction. Glucose and other small water-soluble molecules move, in part, by facilitated diffusion: they use special channels, called transporters, to cross the cell membrane. Water moves by osmosis. - Transcellular vesicle transport, or transcytosis: some proteins and hormones are packaged into lipid vesicles and transported through endothelial cells by endocytosis and exocytosis. - In most tissues, however, the bulk exchange of fluids and solutes is through the gaps between endothelial cells, called intercellular clefts; and, in some tissues, through the pores of so-called fenestrated capillaries. Blood plasma containing nutrients moves out of capillaries at the arterial end of capillary beds, in a process called filtration, while tissue fluid containing wastes reabsorbs back in at the venous end. This movement, called bulk flow, is driven by the balance between two forces: - Hydrostatic force, generated by the difference in hydrostatic pressures inside and outside the capillaries. Hydrostatic pressure is defined as the pressure of fluids in a closed space. Inside capillaries, this is the same as capillary blood pressure. As tissues generally contain much less fluid than blood, hydrostatic pressure from inside capillaries is considerably higher than that from outside. Thus, hydrostatic force drives fluids, and blood solutes, out of capillaries. - Hydrostatic force is opposed by osmotic force. Osmotic force, also called oncotic pressure, is generated mainly by the difference in protein concentrations between the blood and interstitial tissue. The blood has a much higher protein content, due to albumin, and this draws water into blood vessels. Because the arterial end of a capillary bed is relatively closer to the heart than the venous end, capillary blood pressure and, by extension, hydrostatic pressure, is higher at the arterial end. With osmotic pressure remaining the same throughout, the balance shifts from net outward flow at the arterial end to net inward flow at the venous end. Note that the net outward filtration pressure is greater than the net inward reabsorption pressure. This means more fluid is filtered out than reabsorbed back in. In fact, about 15% of the fluid is left in the tissues after capillary exchange. This fluid is picked up by the lymphatic system and returned to the circulation at a later point. Edema refers to abnormal accumulation of excess fluid in a tissue. It manifests as external swelling or enlarged internal organs. There are 3 principal groups of causes: - Increased filtration, either from increased blood pressure or increased capillary permeability, - Decreased reabsorption due to reduced blood albumin concentrations, - and obstruction of lymphatic drainage. Excess fluid hinders the exchange of nutrient/waste and gases and may lead to tissue necrosis. Severe edema may also be accompanied by critically reduced blood volume which may result in circulatory shock.

https://wn.com/Capillary_Exchange_And_Edema,_Animation

(USMLE topics, cardiology) Mechanisms of capillary exchange: diffusion, transcytosis, filtration and reabsorption; cause of edema. Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images. ©Alila Medical Media. All rights reserved. Voice by Ashley Fleming All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The major purpose of the circulatory system is to bring oxygen and nutrients to body tissues and remove wastes. This exchange happens in the smallest blood vessels called the capillaries. The walls of capillaries consist of a single layer of endothelial cells. Substances move between the blood and surrounding tissue in several ways: - Diffusion through the plasma membranes of endothelial cells: the hydrophobic nature of the cell membrane makes it intrinsically permeable to small lipid-soluble molecules and small gases. Oxygen moves down its concentration gradient, from the blood to the surrounding tissue, while carbon dioxide diffuses in the reverse direction. Glucose and other small water-soluble molecules move, in part, by facilitated diffusion: they use special channels, called transporters, to cross the cell membrane. Water moves by osmosis. - Transcellular vesicle transport, or transcytosis: some proteins and hormones are packaged into lipid vesicles and transported through endothelial cells by endocytosis and exocytosis. - In most tissues, however, the bulk exchange of fluids and solutes is through the gaps between endothelial cells, called intercellular clefts; and, in some tissues, through the pores of so-called fenestrated capillaries. Blood plasma containing nutrients moves out of capillaries at the arterial end of capillary beds, in a process called filtration, while tissue fluid containing wastes reabsorbs back in at the venous end. This movement, called bulk flow, is driven by the balance between two forces: - Hydrostatic force, generated by the difference in hydrostatic pressures inside and outside the capillaries. Hydrostatic pressure is defined as the pressure of fluids in a closed space. Inside capillaries, this is the same as capillary blood pressure. As tissues generally contain much less fluid than blood, hydrostatic pressure from inside capillaries is considerably higher than that from outside. Thus, hydrostatic force drives fluids, and blood solutes, out of capillaries. - Hydrostatic force is opposed by osmotic force. Osmotic force, also called oncotic pressure, is generated mainly by the difference in protein concentrations between the blood and interstitial tissue. The blood has a much higher protein content, due to albumin, and this draws water into blood vessels. Because the arterial end of a capillary bed is relatively closer to the heart than the venous end, capillary blood pressure and, by extension, hydrostatic pressure, is higher at the arterial end. With osmotic pressure remaining the same throughout, the balance shifts from net outward flow at the arterial end to net inward flow at the venous end. Note that the net outward filtration pressure is greater than the net inward reabsorption pressure. This means more fluid is filtered out than reabsorbed back in. In fact, about 15% of the fluid is left in the tissues after capillary exchange. This fluid is picked up by the lymphatic system and returned to the circulation at a later point. Edema refers to abnormal accumulation of excess fluid in a tissue. It manifests as external swelling or enlarged internal organs. There are 3 principal groups of causes: - Increased filtration, either from increased blood pressure or increased capillary permeability, - Decreased reabsorption due to reduced blood albumin concentrations, - and obstruction of lymphatic drainage. Excess fluid hinders the exchange of nutrient/waste and gases and may lead to tissue necrosis. Severe edema may also be accompanied by critically reduced blood volume which may result in circulatory shock.

• published: 30 Sep 2019
• views: 632052

0:17

Capillaries in the Lungs: Learn@Visible Body

• Order: Reorder
• Duration: 0:17
• Uploaded Date: 04 Oct 2021
• views: 17193

During external respiration, oxygen travels from tiny air sacs called alveoli into the bloodstream. At the same time, carbon dioxide travels from the bloodstrea...

During external respiration, oxygen travels from tiny air sacs called alveoli into the bloodstream. At the same time, carbon dioxide travels from the bloodstream into the alveoli for elimination. For more awesome 3D anatomy resources, check out https://www.visiblebody.com.

https://wn.com/Capillaries_In_The_Lungs_Learn_Visible_Body

During external respiration, oxygen travels from tiny air sacs called alveoli into the bloodstream. At the same time, carbon dioxide travels from the bloodstream into the alveoli for elimination. For more awesome 3D anatomy resources, check out https://www.visiblebody.com.

• published: 04 Oct 2021
• views: 17193

14:45

Capillary Exchange

• Order: Reorder
• Duration: 14:45
• Uploaded Date: 25 Sep 2023
• views: 40584

In this mini lecture, Dr Mike explains why it is important to understand capillary exchange when it comes to inflammation and right-side heart failure...think o...

In this mini lecture, Dr Mike explains why it is important to understand capillary exchange when it comes to inflammation and right-side heart failure...think oedema!!

https://wn.com/Capillary_Exchange

In this mini lecture, Dr Mike explains why it is important to understand capillary exchange when it comes to inflammation and right-side heart failure...think oedema!!

• published: 25 Sep 2023
• views: 40584

3:24

A Level Biology Revision "Structure and Function of Capillaries"

• Order: Reorder
• Duration: 3:24
• Uploaded Date: 31 May 2022
• views: 19609

You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/ In this video, we loo...

You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/ In this video, we look at the structure and function of capillaries. First we explore the structure of capillaries. We then look at how the structure is adapted for the efficient diffusion of molecules between the blood and the tissue cells. This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification.

https://wn.com/A_Level_Biology_Revision_Structure_And_Function_Of_Capillaries

You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/ In this video, we look at the structure and function of capillaries. First we explore the structure of capillaries. We then look at how the structure is adapted for the efficient diffusion of molecules between the blood and the tissue cells. This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification.

• published: 31 May 2022
• views: 19609

2:22

Capillaries (Medical Definition) | Quick Explainer Video

• Order: Reorder
• Duration: 2:22
• Uploaded Date: 16 Aug 2022
• views: 12467

What are capillaries? What is their function in the human body? This video covers the medical definition and provides a brief overview of this topic. 💥Cardiovas...

What are capillaries? What is their function in the human body? This video covers the medical definition and provides a brief overview of this topic. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ➡️ Capillaries Capillaries are small blood vessels that are only 5-10 μm in diameter. Although small in size, capillaries play an important role in the body as they are responsible for exchanging blood and nutrients between the body tissues and the bloodstream. Capillaries form a connection between the arterioles and venules. Since the walls of capillaries are so thin, it allows for easy diffusion of oxygen, carbon dioxide, nutrients, and waste products. ➡️ Diffusion Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration. In the case of oxygen and carbon dioxide, the blood in the capillaries is typically more concentrated with these gases than the surrounding tissues. The small size of the capillaries also allows for a large surface area in which diffusion can occur. This is important as it allows the body to exchange oxygen and carbon dioxide at a high rate, ensuring that the tissues receive the oxygen they need and that waste products are removed efficiently. ➡️ Location Capillaries are found throughout the body and are especially abundant in areas where oxygen and nutrient exchange is important, such as the lungs, gut, and kidneys. They are also found in the brain, where they play an important role in maintaining a constant supply of blood and nutrients in that area as well. Capillaries are an important part of the body's circulatory system and play a vital role in exchanging blood and nutrients between body tissues and the bloodstream. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ————— 📗 BEST STUDY GUIDES FOR YOU ▪ TMC Test Bank 👉 http://bit.ly/2IGeqSu ▪ Hacking the TMC Exam 👉 http://bit.ly/2XBc8do ▪ TMC Exam Bundle (Save $) 👉 https://bit.ly/34pqEsV ▪ Daily TMC Practice Questions 👉 http://bit.ly/2NnXh3C 💙MORE FROM RTZ ▪ Free TMC Practice Exam 👉 http://bit.ly/2XlwASL ▪ Free RRT Cheat Sheet 👉 http://bit.ly/2IbmOKB ▪ Resources for RT's 👉 http://bit.ly/2WVV5qo ▪ Testimonials 👉 http://bit.ly/2x7b5Gl 🌐FOLLOW US ▪ Instagram 👉 http://bit.ly/2FhF0jV ▪ Twitter 👉 http://bit.ly/2ZsS6T1 ▪ Facebook 👉 http://bit.ly/2MSEejt ▪ Pinterest 👉 http://bit.ly/2ZwVLPw 🚑MEDICAL DISCLAIMER This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time. 💡AFFILIATE DISCLAIMER This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you. ————— ⏰TIMESTAMPS 0:00 - Intro 0:26 - Capillaries 0:58 - Diffusion ————— 🖼CREDIT FOR MUSIC AND GRAPHICS: ▪ Music licensed from Audiojungle.net/ ▪ Graphics: Canva.com, Freevector.com, Vecteezy.com, and Pngtree.com #RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool

https://wn.com/Capillaries_(Medical_Definition)_|_Quick_Explainer_Video

What are capillaries? What is their function in the human body? This video covers the medical definition and provides a brief overview of this topic. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ➡️ Capillaries Capillaries are small blood vessels that are only 5-10 μm in diameter. Although small in size, capillaries play an important role in the body as they are responsible for exchanging blood and nutrients between the body tissues and the bloodstream. Capillaries form a connection between the arterioles and venules. Since the walls of capillaries are so thin, it allows for easy diffusion of oxygen, carbon dioxide, nutrients, and waste products. ➡️ Diffusion Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration. In the case of oxygen and carbon dioxide, the blood in the capillaries is typically more concentrated with these gases than the surrounding tissues. The small size of the capillaries also allows for a large surface area in which diffusion can occur. This is important as it allows the body to exchange oxygen and carbon dioxide at a high rate, ensuring that the tissues receive the oxygen they need and that waste products are removed efficiently. ➡️ Location Capillaries are found throughout the body and are especially abundant in areas where oxygen and nutrient exchange is important, such as the lungs, gut, and kidneys. They are also found in the brain, where they play an important role in maintaining a constant supply of blood and nutrients in that area as well. Capillaries are an important part of the body's circulatory system and play a vital role in exchanging blood and nutrients between body tissues and the bloodstream. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ————— 📗 BEST STUDY GUIDES FOR YOU ▪ TMC Test Bank 👉 http://bit.ly/2IGeqSu ▪ Hacking the TMC Exam 👉 http://bit.ly/2XBc8do ▪ TMC Exam Bundle (Save $) 👉 https://bit.ly/34pqEsV ▪ Daily TMC Practice Questions 👉 http://bit.ly/2NnXh3C 💙MORE FROM RTZ ▪ Free TMC Practice Exam 👉 http://bit.ly/2XlwASL ▪ Free RRT Cheat Sheet 👉 http://bit.ly/2IbmOKB ▪ Resources for RT's 👉 http://bit.ly/2WVV5qo ▪ Testimonials 👉 http://bit.ly/2x7b5Gl 🌐FOLLOW US ▪ Instagram 👉 http://bit.ly/2FhF0jV ▪ Twitter 👉 http://bit.ly/2ZsS6T1 ▪ Facebook 👉 http://bit.ly/2MSEejt ▪ Pinterest 👉 http://bit.ly/2ZwVLPw 🚑MEDICAL DISCLAIMER This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time. 💡AFFILIATE DISCLAIMER This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you. ————— ⏰TIMESTAMPS 0:00 - Intro 0:26 - Capillaries 0:58 - Diffusion ————— 🖼CREDIT FOR MUSIC AND GRAPHICS: ▪ Music licensed from Audiojungle.net/ ▪ Graphics: Canva.com, Freevector.com, Vecteezy.com, and Pngtree.com #RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool

• published: 16 Aug 2022
• views: 12467

0:34

Capillaries - What Are Capillaries - Functions Of Capillaries

• Order: Reorder
• Duration: 0:34
• Uploaded Date: 11 Jul 2016
• views: 107045

In this video I discuss the functions of capillaries, and what do capillaries do in the cardiovascular system. Transcript What are capillaries? Capillari...

In this video I discuss the functions of capillaries, and what do capillaries do in the cardiovascular system. Transcript What are capillaries? Capillaries are small blood vessels that are part of the circulatory system. They connect arteries and veins, and many enter tissue forming a capillary bed. In this area, oxygen and other nutrients are released and carbon dioxide and other waste products are passed into the blood, which then enters veins. Capillaries are so small that only one red blood cell can pass through at a time. They are made up of a single layer of curved cells that have tiny gaps between them to allow substances to move in and out of the blood.

https://wn.com/Capillaries_What_Are_Capillaries_Functions_Of_Capillaries

In this video I discuss the functions of capillaries, and what do capillaries do in the cardiovascular system. Transcript What are capillaries? Capillaries are small blood vessels that are part of the circulatory system. They connect arteries and veins, and many enter tissue forming a capillary bed. In this area, oxygen and other nutrients are released and carbon dioxide and other waste products are passed into the blood, which then enters veins. Capillaries are so small that only one red blood cell can pass through at a time. They are made up of a single layer of curved cells that have tiny gaps between them to allow substances to move in and out of the blood.

• published: 11 Jul 2016
• views: 107045

11:54:58

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing

• Order: Reorder
• Duration: 11:54:58
• Uploaded Date: 27 Mar 2024
• views: 564

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restore...

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Welcome to my Youtube channel. True Happiness is a wonderful destination for anyone looking to unwind and find peace in the midst of a busy day. My channel features a variety of relaxing music paired with stunning nature videos, creating a soothing and calming atmosphere that is perfect for meditation, yoga, or simply unwinding after a long day. Whether you're looking for gentle piano melodies, soft guitar strumming, or the soothing sounds of nature, True Happiness has something for everyone. So sit back, relax, and let the beauty of nature and the power of music wash over you on True Happiness. @loveyourself.alexander @healingsoul6795 @sallambasha @LucidDream55 Don't forget to subscribe to update new videos. 🌿 Shout out to Helios Records: https://linktr.ee/heliosrecords 🌞 To contact and send music: [email protected] #music #relax #soothingmusic ©️ All rights reserved by True Happiness. Do not reup

https://wn.com/Music_Heals_The_Heart_And_Blood_Vessels._Soothing_Music_Restores_The_Nervous_System_And_Relaxing

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Welcome to my Youtube channel. True Happiness is a wonderful destination for anyone looking to unwind and find peace in the midst of a busy day. My channel features a variety of relaxing music paired with stunning nature videos, creating a soothing and calming atmosphere that is perfect for meditation, yoga, or simply unwinding after a long day. Whether you're looking for gentle piano melodies, soft guitar strumming, or the soothing sounds of nature, True Happiness has something for everyone. So sit back, relax, and let the beauty of nature and the power of music wash over you on True Happiness. @loveyourself.alexander @healingsoul6795 @sallambasha @LucidDream55 Don't forget to subscribe to update new videos. 🌿 Shout out to Helios Records: https://linktr.ee/heliosrecords 🌞 To contact and send music: [email protected] #music #relax #soothingmusic ©️ All rights reserved by True Happiness. Do not reup

• published: 27 Mar 2024
• views: 564

9:30

Blood Vessels, Part 1 - Form and Function: Crash Course Anatomy & Physiology #27

• Order: Reorder
• Duration: 9:30
• Uploaded Date: 20 Jul 2015
• views: 2922673

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer str...

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures differ slightly in different types of vessels. We will also follow the flow of blood from your heart to the capillaries in your right thumb, and all the way back to your heart again. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters Introduction: The Circulatory System 00:00 Blood Vessel Structure: Tunica Intima, Tunica Media, Tunica Externa 2:10 Types of Blood Vessels 3:44 Capillaries Structure & Function 5:25 How Blood Flows From Capillaries to the Heart 7:01 Review 8:39 Credits 9:03 *** Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Anna-Ester Volozh, Robert Kunz, Jason A Saslow, Christian Ludvigsen, Chris Peters, Brad Wardell, Beatrice Jin, Roger C. Rocha, Eric Knight, Jessica Simmons, Jeffrey Thompson, Elliot Beter, Today I Found Out, James Craver, Ian Dundore, Jessica Wode, SR Foxley, Sandra Aft, Jacob Ash, Steve Marshall ***SUBBABLE MESSAGES*** TO: Hunter Boyajian FROM: Chase Boyajian In the darkest times, hope is something you give yourself. -- TO: The World FROM: Andrew Johnstone Lets all make a podcast ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Luke Blackbourn, Tori McClanahan, Evan Gale, Damian Shaw, Sean Riley, Ólafur D. Skúlason, Ho Yin Michael Cheng, Philip Oddie, Silvan Fricker, Stephen DeCubellis -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids

https://wn.com/Blood_Vessels,_Part_1_Form_And_Function_Crash_Course_Anatomy_Physiology_27

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures differ slightly in different types of vessels. We will also follow the flow of blood from your heart to the capillaries in your right thumb, and all the way back to your heart again. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters Introduction: The Circulatory System 00:00 Blood Vessel Structure: Tunica Intima, Tunica Media, Tunica Externa 2:10 Types of Blood Vessels 3:44 Capillaries Structure & Function 5:25 How Blood Flows From Capillaries to the Heart 7:01 Review 8:39 Credits 9:03 *** Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Anna-Ester Volozh, Robert Kunz, Jason A Saslow, Christian Ludvigsen, Chris Peters, Brad Wardell, Beatrice Jin, Roger C. Rocha, Eric Knight, Jessica Simmons, Jeffrey Thompson, Elliot Beter, Today I Found Out, James Craver, Ian Dundore, Jessica Wode, SR Foxley, Sandra Aft, Jacob Ash, Steve Marshall ***SUBBABLE MESSAGES*** TO: Hunter Boyajian FROM: Chase Boyajian In the darkest times, hope is something you give yourself. -- TO: The World FROM: Andrew Johnstone Lets all make a podcast ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Luke Blackbourn, Tori McClanahan, Evan Gale, Damian Shaw, Sean Riley, Ólafur D. Skúlason, Ho Yin Michael Cheng, Philip Oddie, Silvan Fricker, Stephen DeCubellis -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids

• published: 20 Jul 2015
• views: 2922673

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3:08

GCSE Biology Revision "Arteries, Veins and Capillaries"

GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_...

published: 11 Sep 2017

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GCSE Biology Revision "Arteries, Veins and Capillaries"

GCSE Biology Revision "Arteries, Veins and Capillaries"

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• published: 11 Sep 2017
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GCSE workbooks https://www.amazon.co.uk/Dr-Shaun-Donnelly/e/B084FH9JPF?ref_=dbs_p_pbk_r00_abau_000000&_encoding=UTF8&tag=freesciencele-21&linkCode=ur2&linkId=1fbc0f5c3e7450e895637b56ee343168&camp=1634&creative=6738 School licenses from 40p per copy https://www.freesciencelessons.co.uk/school-licences/ In this video, we look at the structures of arteries, veins and capillaries. We look at the roles of these blood vessels and then how their structures are adapted for their functions. This video is based on the AQA spec. If you are following a different exam board then you should check your specification. The Amazon link above is an affiliate link. This provides a small commission which helps to support freesciencelessons. The cost remains the same to you. If you prefer not to use this, you can search Amazon for the Freesciencelessons workbooks. Deliberate Thought by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/?keywords=deliberate+thought Artist: http://incompetech.com/ Image credits: All images were created by and are the property of Autonomy Education Ltd.

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22:04

Cardiovascular | Tunic Layers & Types of Capillaries

Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! Join us in this video whe...

published: 07 Mar 2017

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Cardiovascular | Tunic Layers & Types of Capillaries

Cardiovascular | Tunic Layers & Types of Capillaries

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Official Ninja Nerd Website: https://ninjanerd.org Ninja Nerds! Join us in this video where we discuss the different types of capillaries, and the multiple tunic layers of blood vessels. We hope you enjoy this lecture and be sure to check out all of our social media pages and ways to support us below! References: ● Tucker, W. D. (2021, August 11). Anatomy, Blood Vessels. U.S. National Library of Medicine. Retrieved September 10, 2021, from https://www.ncbi.nlm.nih.gov/books/NBK470401/. ● Torres-Vázquez, J., Kamei, M., & Weinstein, B. M. (2003). Molecular distinction between arteries and veins. Cell and Tissue Research, 314(1), 43–59. https://doi.org/10.1007/s00441-003-0771-8 ● Le T, Bhushan V, Sochat M, Chavda Y, Zureick A. First Aid for the USMLE Step 1 2018. New York, NY: McGraw-Hill Medical; 2017 ● Mancini MC. Heart Anatomy. In: Berger S Heart Anatomy. New York, NY: WebMD.https://emedicine.medscape.com/article/905502-overview. ● Hill M. Cardiovascular System - Heart Histology. https://embryology.med.unsw.edu.au/embryology/index.php/Cardiovascular_System_-_Heart_Histology. ● Standring S. Gray's Anatomy: The Anatomical Basis of Clinical Practice. Elsevier Health Sciences; 2016 ● Leslie P. Gartner, James L. Hiatt. Color Textbook of Histology. New York (NY): Grune & Stratton Inc.; 2006 ● U. S. National Institutes of Health, National Cancer Institute. NIH SEER Training Modules - Classification & Structure of Blood Vessels. https://training.seer.cancer.gov/anatomy/cardiovascular/blood/classification.html. ● Marieb EN, Hoehn K. Anatomy & Physiology. Hoboken, NJ: Pearson; 2020. ● Boron WF, Boulpaep EL. Medical Physiology.; 2017. Join this channel to get access to perks: https://www.youtube.com/channel/UC6QYFutt9cluQ3uSM963_KQ/join APPAREL | https://www.amazon.com/s?k=ninja+nerd&ref=nb_sb_noss_2 DONATE PATREON | https://www.patreon.com/NinjaNerdScience PAYPAL | https://www.paypal.com/paypalme/ninjanerdscience SOCIAL MEDIA FACEBOOK | https://www.facebook.com/NinjaNerdlectures INSTAGRAM | https://www.instagram.com/ninjanerdlectures TWITTER | https://twitter.com/ninjanerdsci @NinjaNerdSci DISCORD | https://discord.gg/3srTG4dngW #ninjanerd #typesofcapillaries #tuniclayers

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4:26

Capillary Exchange and Edema, Animation

(USMLE topics, cardiology) Mechanisms of capillary exchange: diffusion, transcytosis, filt...

published: 30 Sep 2019

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Capillary Exchange and Edema, Animation

Capillary Exchange and Edema, Animation

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• published: 30 Sep 2019
• views: 632052

(USMLE topics, cardiology) Mechanisms of capillary exchange: diffusion, transcytosis, filtration and reabsorption; cause of edema. Purchase a license to download a non-watermarked version of this video on AlilaMedicalMedia(dot)com Check out our new Alila Academy - AlilaAcademy(dot)com - complete video courses with quizzes, PDFs, and downloadable images. ©Alila Medical Media. All rights reserved. Voice by Ashley Fleming All images/videos by Alila Medical Media are for information purposes ONLY and are NOT intended to replace professional medical advice, diagnosis or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition. The major purpose of the circulatory system is to bring oxygen and nutrients to body tissues and remove wastes. This exchange happens in the smallest blood vessels called the capillaries. The walls of capillaries consist of a single layer of endothelial cells. Substances move between the blood and surrounding tissue in several ways: - Diffusion through the plasma membranes of endothelial cells: the hydrophobic nature of the cell membrane makes it intrinsically permeable to small lipid-soluble molecules and small gases. Oxygen moves down its concentration gradient, from the blood to the surrounding tissue, while carbon dioxide diffuses in the reverse direction. Glucose and other small water-soluble molecules move, in part, by facilitated diffusion: they use special channels, called transporters, to cross the cell membrane. Water moves by osmosis. - Transcellular vesicle transport, or transcytosis: some proteins and hormones are packaged into lipid vesicles and transported through endothelial cells by endocytosis and exocytosis. - In most tissues, however, the bulk exchange of fluids and solutes is through the gaps between endothelial cells, called intercellular clefts; and, in some tissues, through the pores of so-called fenestrated capillaries. Blood plasma containing nutrients moves out of capillaries at the arterial end of capillary beds, in a process called filtration, while tissue fluid containing wastes reabsorbs back in at the venous end. This movement, called bulk flow, is driven by the balance between two forces: - Hydrostatic force, generated by the difference in hydrostatic pressures inside and outside the capillaries. Hydrostatic pressure is defined as the pressure of fluids in a closed space. Inside capillaries, this is the same as capillary blood pressure. As tissues generally contain much less fluid than blood, hydrostatic pressure from inside capillaries is considerably higher than that from outside. Thus, hydrostatic force drives fluids, and blood solutes, out of capillaries. - Hydrostatic force is opposed by osmotic force. Osmotic force, also called oncotic pressure, is generated mainly by the difference in protein concentrations between the blood and interstitial tissue. The blood has a much higher protein content, due to albumin, and this draws water into blood vessels. Because the arterial end of a capillary bed is relatively closer to the heart than the venous end, capillary blood pressure and, by extension, hydrostatic pressure, is higher at the arterial end. With osmotic pressure remaining the same throughout, the balance shifts from net outward flow at the arterial end to net inward flow at the venous end. Note that the net outward filtration pressure is greater than the net inward reabsorption pressure. This means more fluid is filtered out than reabsorbed back in. In fact, about 15% of the fluid is left in the tissues after capillary exchange. This fluid is picked up by the lymphatic system and returned to the circulation at a later point. Edema refers to abnormal accumulation of excess fluid in a tissue. It manifests as external swelling or enlarged internal organs. There are 3 principal groups of causes: - Increased filtration, either from increased blood pressure or increased capillary permeability, - Decreased reabsorption due to reduced blood albumin concentrations, - and obstruction of lymphatic drainage. Excess fluid hinders the exchange of nutrient/waste and gases and may lead to tissue necrosis. Severe edema may also be accompanied by critically reduced blood volume which may result in circulatory shock.

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0:17

Capillaries in the Lungs: Learn@Visible Body

During external respiration, oxygen travels from tiny air sacs called alveoli into the blo...

published: 04 Oct 2021

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Capillaries in the Lungs: Learn@Visible Body

Capillaries in the Lungs: Learn@Visible Body

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During external respiration, oxygen travels from tiny air sacs called alveoli into the bloodstream. At the same time, carbon dioxide travels from the bloodstream into the alveoli for elimination. For more awesome 3D anatomy resources, check out https://www.visiblebody.com.

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14:45

Capillary Exchange

In this mini lecture, Dr Mike explains why it is important to understand capillary exchang...

published: 25 Sep 2023

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Capillary Exchange

Capillary Exchange

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• published: 25 Sep 2023
• views: 40584

In this mini lecture, Dr Mike explains why it is important to understand capillary exchange when it comes to inflammation and right-side heart failure...think oedema!!

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3:24

A Level Biology Revision "Structure and Function of Capillaries"

You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons...

published: 31 May 2022

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A Level Biology Revision "Structure and Function of Capillaries"

A Level Biology Revision "Structure and Function of Capillaries"

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You can find all my A Level Biology videos fully indexed at https://www.freesciencelessons.co.uk/a-level-revision-videos/a-level-biology/ In this video, we look at the structure and function of capillaries. First we explore the structure of capillaries. We then look at how the structure is adapted for the efficient diffusion of molecules between the blood and the tissue cells. This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification.

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2:22

Capillaries (Medical Definition) | Quick Explainer Video

What are capillaries? What is their function in the human body? This video covers the medi...

published: 16 Aug 2022

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Capillaries (Medical Definition) | Quick Explainer Video

Capillaries (Medical Definition) | Quick Explainer Video

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• published: 16 Aug 2022
• views: 12467

What are capillaries? What is their function in the human body? This video covers the medical definition and provides a brief overview of this topic. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ➡️ Capillaries Capillaries are small blood vessels that are only 5-10 μm in diameter. Although small in size, capillaries play an important role in the body as they are responsible for exchanging blood and nutrients between the body tissues and the bloodstream. Capillaries form a connection between the arterioles and venules. Since the walls of capillaries are so thin, it allows for easy diffusion of oxygen, carbon dioxide, nutrients, and waste products. ➡️ Diffusion Diffusion is the process by which molecules move from an area of high concentration to an area of low concentration. In the case of oxygen and carbon dioxide, the blood in the capillaries is typically more concentrated with these gases than the surrounding tissues. The small size of the capillaries also allows for a large surface area in which diffusion can occur. This is important as it allows the body to exchange oxygen and carbon dioxide at a high rate, ensuring that the tissues receive the oxygen they need and that waste products are removed efficiently. ➡️ Location Capillaries are found throughout the body and are especially abundant in areas where oxygen and nutrient exchange is important, such as the lungs, gut, and kidneys. They are also found in the brain, where they play an important role in maintaining a constant supply of blood and nutrients in that area as well. Capillaries are an important part of the body's circulatory system and play a vital role in exchanging blood and nutrients between body tissues and the bloodstream. 💥Cardiovascular System [Full Guide] ➜ ➜ ➜ https://bit.ly/3fYavPD ————— 📗 BEST STUDY GUIDES FOR YOU ▪ TMC Test Bank 👉 http://bit.ly/2IGeqSu ▪ Hacking the TMC Exam 👉 http://bit.ly/2XBc8do ▪ TMC Exam Bundle (Save $) 👉 https://bit.ly/34pqEsV ▪ Daily TMC Practice Questions 👉 http://bit.ly/2NnXh3C 💙MORE FROM RTZ ▪ Free TMC Practice Exam 👉 http://bit.ly/2XlwASL ▪ Free RRT Cheat Sheet 👉 http://bit.ly/2IbmOKB ▪ Resources for RT's 👉 http://bit.ly/2WVV5qo ▪ Testimonials 👉 http://bit.ly/2x7b5Gl 🌐FOLLOW US ▪ Instagram 👉 http://bit.ly/2FhF0jV ▪ Twitter 👉 http://bit.ly/2ZsS6T1 ▪ Facebook 👉 http://bit.ly/2MSEejt ▪ Pinterest 👉 http://bit.ly/2ZwVLPw 🚑MEDICAL DISCLAIMER This content is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with a physician with any questions that you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you watch in this video. We strive for 100% accuracy, but errors may occur, and medications, protocols, and treatment methods may change over time. 💡AFFILIATE DISCLAIMER This description contains affiliate links. If you decide to purchase a product through one of them, we receive a small commission at no cost to you. ————— ⏰TIMESTAMPS 0:00 - Intro 0:26 - Capillaries 0:58 - Diffusion ————— 🖼CREDIT FOR MUSIC AND GRAPHICS: ▪ Music licensed from Audiojungle.net/ ▪ Graphics: Canva.com, Freevector.com, Vecteezy.com, and Pngtree.com #RespiratoryTherapy #RespiratoryTherapist #RespiratoryTherapySchool

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0:34

Capillaries - What Are Capillaries - Functions Of Capillaries

In this video I discuss the functions of capillaries, and what do capillaries do in the ca...

published: 11 Jul 2016

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Capillaries - What Are Capillaries - Functions Of Capillaries

Capillaries - What Are Capillaries - Functions Of Capillaries

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• published: 11 Jul 2016
• views: 107045

In this video I discuss the functions of capillaries, and what do capillaries do in the cardiovascular system. Transcript What are capillaries? Capillaries are small blood vessels that are part of the circulatory system. They connect arteries and veins, and many enter tissue forming a capillary bed. In this area, oxygen and other nutrients are released and carbon dioxide and other waste products are passed into the blood, which then enters veins. Capillaries are so small that only one red blood cell can pass through at a time. They are made up of a single layer of curved cells that have tiny gaps between them to allow substances to move in and out of the blood.

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11:54:58

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Re...

published: 27 Mar 2024

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Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing

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• published: 27 Mar 2024
• views: 564

Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Music Heals the Heart and Blood Vessels. Soothing Music Restores the Nervous System and Relaxing Welcome to my Youtube channel. True Happiness is a wonderful destination for anyone looking to unwind and find peace in the midst of a busy day. My channel features a variety of relaxing music paired with stunning nature videos, creating a soothing and calming atmosphere that is perfect for meditation, yoga, or simply unwinding after a long day. Whether you're looking for gentle piano melodies, soft guitar strumming, or the soothing sounds of nature, True Happiness has something for everyone. So sit back, relax, and let the beauty of nature and the power of music wash over you on True Happiness. @loveyourself.alexander @healingsoul6795 @sallambasha @LucidDream55 Don't forget to subscribe to update new videos. 🌿 Shout out to Helios Records: https://linktr.ee/heliosrecords 🌞 To contact and send music: [email protected] #music #relax #soothingmusic ©️ All rights reserved by True Happiness. Do not reup

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9:30

Blood Vessels, Part 1 - Form and Function: Crash Course Anatomy & Physiology #27

Now that we've discussed blood, we're beginning our look at how it gets around your body. ...

published: 20 Jul 2015

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Blood Vessels, Part 1 - Form and Function: Crash Course Anatomy & Physiology #27

Blood Vessels, Part 1 - Form and Function: Crash Course Anatomy & Physiology #27

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• published: 20 Jul 2015
• views: 2922673

Now that we've discussed blood, we're beginning our look at how it gets around your body. Today Hank explains your blood vessels and their basic three-layer structure of your blood vessels. We're also going over how those structures differ slightly in different types of vessels. We will also follow the flow of blood from your heart to the capillaries in your right thumb, and all the way back to your heart again. Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: https://apple.co/3d4eyZo Download it here for Android Devices: https://bit.ly/2SrDulJ Chapters Introduction: The Circulatory System 00:00 Blood Vessel Structure: Tunica Intima, Tunica Media, Tunica Externa 2:10 Types of Blood Vessels 3:44 Capillaries Structure & Function 5:25 How Blood Flows From Capillaries to the Heart 7:01 Review 8:39 Credits 9:03 *** Crash Course is now on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Thanks to the following Patrons for their generous monthly contributions that help keep Crash Course free for everyone forever: Mark Brouwer, Jan Schmid, Anna-Ester Volozh, Robert Kunz, Jason A Saslow, Christian Ludvigsen, Chris Peters, Brad Wardell, Beatrice Jin, Roger C. Rocha, Eric Knight, Jessica Simmons, Jeffrey Thompson, Elliot Beter, Today I Found Out, James Craver, Ian Dundore, Jessica Wode, SR Foxley, Sandra Aft, Jacob Ash, Steve Marshall ***SUBBABLE MESSAGES*** TO: Hunter Boyajian FROM: Chase Boyajian In the darkest times, hope is something you give yourself. -- TO: The World FROM: Andrew Johnstone Lets all make a podcast ***SUPPORTER THANK YOU!*** Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever: Luke Blackbourn, Tori McClanahan, Evan Gale, Damian Shaw, Sean Riley, Ólafur D. Skúlason, Ho Yin Michael Cheng, Philip Oddie, Silvan Fricker, Stephen DeCubellis -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids

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Capillary

Capillaries (/ˈkæpᵻlɛriz/ in US; /kəˈpɪləriz/ in UK) are the smallest of a body's blood vessels (and lymph vessels) that make up the microcirculation. Their endothelial linings are only one cell layer thick. These microvessels, measuring around 5 to 10 micrometres (µm) in diameter, connect arterioles and venules, and they help to enable the exchange of water, oxygen, carbon dioxide, and many other nutrients and waste substances between the blood and the tissues surrounding them. Lymph capillaries connect with larger lymph vessels to drain lymph collected in the microcirculation.

During early embryonic development new capillaries are formed through vasculogenesis, the process of blood vessel formation that occurs through a de novo production of endothelial cells which then form vascular tubes. The term angiogenesis denotes the formation of new capillaries from pre-existing blood vessels and already present endothelium which divides.

Structure

Blood flows from the heart through arteries, which branch and narrow into arterioles, and then branch further into capillaries where nutrients and wastes are exchanged. The capillaries then join and widen to become venules, which in turn widen and converge to become veins, which then return blood back to the heart through the great veins.

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GCSE Biology Revision "Arteries, Veins and Capilla...

Cardiovascular | Tunic Layers & Types of Capillari...

Capillary Exchange and Edema, Animation...

Capillaries in the Lungs: Learn@Visible Body...

Capillary Exchange...

A Level Biology Revision "Structure and Function o...

Capillaries (Medical Definition) | Quick Explainer...

Capillaries - What Are Capillaries - Functions Of ...

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• Capillaries

  by Riot Before

Capillaries

by: Riot Before

We build utopian empires
We construct policy
Slumped over on bar stools
Stumbling through the streets
We are dreaming in vacuums
Where there's no gravity
All the words that we say never hold any weight
They are polished, they're perfect, pristine
Show cars on the street
Singing tongues over rhythm
Always searching for words
I'm alone in the backseat
In communion with chords
Tightened strings over fret boards
Transcend the distance of stars
But the light that's received is distant history
The present still lost in the dark
The downtown is deserted for suburbs and strip malls
The country inverted lit up by a cell phone
I'm mindlessly scrolling through numbers I won't ever choose
'Cause I can't call you
I wish I could call you
There is a dim light that shines from the opposite side of the lake
A haze over water, that something I can't quite attain
There is a canvas whose blankness is screaming, keeps me awake
I am wrong, I am flawed, but I am saved
So it's cheap beer and late nights just sitting outside talking dreams
That's how I remember it
It's blood always making its way to the tiniest veins
That's how I remember it
I woke on the floor of a stranger's apartment
Refilled pockets with spilled change
I walked out the front door into the descending rain
Occupying the empty space
Between the lines filling history's
Pages of war, kings, of famine, and fortune
The leaders, the fallen, magnificent chosen
Though I am a drop in the largest of oceans
Through unceasing motion
I'll cling to the constants
Sunrise and the sunset
Tempered yet unquiet

Latest News for: capillaries

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Capillary-driven self-assembly of soft ellipsoidal microgels at the air–water interface

PNAS 20 Dec 2024

When the colloids ... .

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Electrocalcium coupling in brain capillaries: Rapidly traveling electrical signals ignite local calcium signals

PNAS 11 Dec 2024

.

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KATP channel–dependent electrical signaling links capillary pericytes to arterioles during neurovascular coupling

PNAS 04 Dec 2024

... recently emerged that capillaries play a vital role in this process.

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Capillary Electrophoresis Market Forecasted to Reach $1.5 Billion by 2030 with a Steady CAGR of ...

Nasdaq Globe Newswire 20 Nov 2024

20, 2024 (GLOBE NEWSWIRE) -- The "Capillary Electrophoresis - Global Strategic Business Report" report has been added to ResearchAndMarkets.com's offering. The current landscape of the Global Capillary ...

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SaaS provider Capillary Technologies revives IPO plan

The Economic Times 07 Nov 2024

Capillary Technologies, backed by the likes of Warbug Pincus, Peak XV Partners and The Evolvence Group, had first filed its draft prospectus with the Securities and Exchange Board of India in December 2021 but then deferred its plan ... .

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Capillary Technologies Promotes Siddhant Jain to Chief Customer Officer, Asia

Business Wire 21 Oct 2024

<caption>Siddhant Jain steps up as CCO, Asia, driving ...

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Trump Goes for the Capillaries, by Jared Taylor

The Unz Review 11 Oct 2024

Video Link. Thumbnail credit. © Al Grillo/ZUMA Press Wire Service. This video is available on Rumble, BitChute, and Odysee. Non-white candidates make racial appeals all the time. White candidates just hint at race ... Here’s the classic illustration ... Second.

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Trump Goes for the Capillaries

Bitchute 10 Oct 2024

Go to the source via the article link to view the video or lcik the video icon ....

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Capillary Blood Collection Devices Market to hit USD 3.4 billion by 2032, says Global Market ...

Nasdaq Globe Newswire 25 Sep 2024

Capillary blood collection devices industry is projected to witness a CAGR ...

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Q&A: Arctic capillaries—an eye-opening symptom in a swiftly changing landscape

Phys Dot Org 11 Sep 2024

As the pace of warming in the Arctic continues to surpass the global average, a complex and expansive network of capillary-like features is emerging across the landscape ... Can you talk about the tundra capillaries and how they form?.

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Capillary regression leads to sustained local hypoperfusion by inducing constriction of upstream transitional vessels

PNAS 05 Sep 2024

Proceedings of the National Academy of Sciences, Volume 121, Issue 37, September 2024 ... .

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Change in group of Equity shares of Mardia Samyoung Capillary Tubes Company Ltd. (Scrip Code: 513544) (BSE Ltd)

Public Technologies 26 Aug 2024

) NOTICES Notice No. 20240826-16 Notice Date 26 Aug 2024. Category Company related Segment Equity. Subject Change in group of Equity shares of Mardia Samyoung Capillary Tubes Company Ltd ... Sr. No ... Mardia Samyoung Capillary Tubes Company Ltd.<_o3a_p>.

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Programmable 2D materials through shape-controlled capillary forces

PNAS 20 Aug 2024

Proceedings of the National Academy of Sciences, Volume 121, Issue 35, August 2024 ... .

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Revocation of Suspension in trading of equity shares of Mardia Samyoung Capillary Tubes Company Ltd. (Scrip Code: 513544 (BSE Ltd)

Public Technologies 16 Aug 2024

) NOTICES Notice No. 20240816-20 Notice Date 16 Aug 2024 ... Subject Revocation of Suspension in trading of equity shares of Mardia Samyoung Capillary Tubes Company Ltd. (Scrip Code. 513544 ... Content ... Mardia Samyoung Capillary Tubes Company Ltd.<_o3a_p>.

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Capillary Electrophoresis Market size is set to grow by USD 308 million from 2024-2028, Increasing ...

Longview News-Journal 09 Aug 2024

NEW YORK, Aug. 9, 2024 /PRNewswire/ -- The global capillary electrophoresis market size is estimated to grow by USD 308 million from 2024-2028, according to Technavio. The market is estimated to grow at a CAGR of 5.66% during the forecast ....

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