-
Tissues, Part 2 - Epithelial Tissue: Crash Course Anatomy & Physiology #3
Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.
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 00:00
Proper Epithelium & Glandular Epithelium 1:38
We're All Just Tubes! 2:12
Cell Shapes: Squamous, Cuboidal, or Columnar 3:34
How Form Relates to Function 4:15
Layering: Simple or Stratified 5:26
Epithelial Cells: Apical & Basal Sides 7:06
Glandular Epithelial Tissue Forms Endocrine & Exocrine Glands 8:20
Review 9:16
Credits 9:54
***
Crash Course is on Patreon! You can support us dir...
published: 19 Jan 2015
-
Epithelial Cells: Surface & Infoldings – Histology | Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cells: Surface & Infoldings” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialcells
► LEARN ABOUT:
- Infoldings (plicae)
- Interdigitating cytoplasmic projections of adjacent cells
- Cell interdigitation
- Basal surface of epithelial cells
- Basal infoldings
- The way to increase surface area
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative Interna...
published: 11 Aug 2015
-
Epithelial Cell Polarity – Histology | Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cell Polarity” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialpolarity
► LEARN ABOUT:
- Epithelial cell polarity
- Apical domains
- Lateral domains
- Basal domains
- Surface modifications of epithelial cells
- Microvilli (brush border)
- Stereocilia
- Cilia
- Structure of microvilli and their function
- Actin filaments
- Fimbrin
- Villin
- Plasmalemma
- Lateral extensions
- Linkage to cell membrane
- Structure of stereocilia and their function
- Structure of cilia and their function
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teach...
published: 11 Aug 2015
-
Classification of Epithelial Tissue – Histology | Lecturio
This video “Classification of Epithelial Tissue” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialclassification
► LEARN ABOUT:
- Classifying epithelium types based on cell shape and cell layers
- Different types of epithelial tissue:
- Simple epithelial tissue
- Simple squamous epithelium
- Simple cuboidal epithelia
- Simple columnar epithelia
- Stratified epithelial tissue
- Stratified squamous nonkeratinized epithelia
- Stratified cuboidal epithelia
- Stratified keratinized epithelia
- Stratified columnar epithelia
- Pseudostratified columnar epithelium
- Transitional epithelium
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Wes...
published: 11 Aug 2015
-
Epithelium
Access my FREE Online Membership today → https://www.thenotedanatomist.com
___
Unlock my Premium Tutoring Memberships → https://www.thenotedanatomist.com/premium-memberships
Lifetime Access to Online Anatomy Course
Foundational Q&A Cards Per Video
Notes and Key Takeaways
Downloadable Documents
Flashcards for Each Course
Weekly Group Tutoring Sessions
Direct Tutoring Sessions
___
Discover A Simplified Approach to Master the Complexity of Anatomy with me, Dr. David Morton ... The Noted Anatomist!
------------------------------------------------------------------
A brief overview of epithelial tissue:
0:00. Intro to epithelium
0:15. What is epithelium?
3:08. Classifications of epithelium
- 3:40. Simple squamous epithelium
- 6:57. Simple cuboidal epithelium
- 8:43. Simple columnar epithelium
...
published: 09 May 2020
-
Epithelial Cell JUNCTIONS
Please like and subscribe to help me make more videos! :-D
CREDITS:
Video Copilot - textures
FROM TURBOSQUID:
Human Anatomy for Simulation - by FujiMedical3D
Pixabay - Red Blood Cells video
published: 08 Mar 2018
-
Epithelial Tissue - What Is Epithelial Tissue - Functions Of Epithelial Tissue - Epithelial Cells
In this video we look at what is epithelial tissue, some of the functions of epithelial tissue, and the different types of epithelial cells.
Epithelial tissue
What is epithelial tissue, where is it located, and what are its functions structure?
Epithelial tissue is one of the four major types of tissue in the body and it can be found throughout many parts of the body. It lines many of the structures of the respiratory tract such as the trachea, bronchi, bronchioles and alveoli, which are the tiny air sacs in the lungs. It also lines most of the digestive tract, the epidermis of skin, the oral cavity and many of the glands of the body.
Epithelial tissues have some common characteristics. It is comprised of tightly packed cells, with very little extracellular space. They also have ...
published: 12 Feb 2018
-
Epithelial tissue
Brief overview and definition of epithelial tissue.
published: 19 Mar 2017
-
Epithelial Cell Junctions
My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.
published: 18 Apr 2021
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Epithelial Cells in Urine Test | Causes & Symptoms Of Epithelial Cells in Urine | Urine Analysis |
An epithelial cells in urine test looks at a sample of your urine under a microscope to count the number of epithelial cells in your urine.
Epithelial cells are a type of cell that covers the inside and outside of the surfaces of your body And found in mentioned areas... on your skin, blood vessels, and organs, including your urinary tract.
Why u need this test?
Your may be asked for this test ...
as part of your regular checkup
or if the results of your visual or chemical urine tests weren't normal.
also if you have symptoms of a urinary or kidney disorder. These symptoms include the following:
Frequent and/or painful urination
Abdominal pain
Back pain
Results & Interpretation
urine test may show that you have “few,” “moderate,” or “many” epithelial cells in your urine.
Havi...
published: 09 Jan 2023
10:16
Tissues, Part 2 - Epithelial Tissue: Crash Course Anatomy & Physiology #3
Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.
Pssst... we m...
Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.
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 00:00
Proper Epithelium & Glandular Epithelium 1:38
We're All Just Tubes! 2:12
Cell Shapes: Squamous, Cuboidal, or Columnar 3:34
How Form Relates to Function 4:15
Layering: Simple or Stratified 5:26
Epithelial Cells: Apical & Basal Sides 7:06
Glandular Epithelial Tissue Forms Endocrine & Exocrine Glands 8:20
Review 9:16
Credits 9:54
***
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
https://wn.com/Tissues,_Part_2_Epithelial_Tissue_Crash_Course_Anatomy_Physiology_3
Today on Crash Course Anatomy & Physiology, Hank breaks down the parts and functions of one of your body's unsung heroes: your epithelial tissue.
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 00:00
Proper Epithelium & Glandular Epithelium 1:38
We're All Just Tubes! 2:12
Cell Shapes: Squamous, Cuboidal, or Columnar 3:34
How Form Relates to Function 4:15
Layering: Simple or Stratified 5:26
Epithelial Cells: Apical & Basal Sides 7:06
Glandular Epithelial Tissue Forms Endocrine & Exocrine Glands 8:20
Review 9:16
Credits 9:54
***
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/
CC Kids: http://www.youtube.com/crashcoursekids
- published: 19 Jan 2015
- views: 4347551
3:50
Epithelial Cells: Surface & Infoldings – Histology | Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
T...
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cells: Surface & Infoldings” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialcells
► LEARN ABOUT:
- Infoldings (plicae)
- Interdigitating cytoplasmic projections of adjacent cells
- Cell interdigitation
- Basal surface of epithelial cells
- Basal infoldings
- The way to increase surface area
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialcells
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialcellsarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Pinterest: https://www.pinterest.de/lecturiomedical
• LinkedIn: https://www.linkedin.com/company/lecturio-medical/
https://wn.com/Epithelial_Cells_Surface_Infoldings_–_Histology_|_Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cells: Surface & Infoldings” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialcells
► LEARN ABOUT:
- Infoldings (plicae)
- Interdigitating cytoplasmic projections of adjacent cells
- Cell interdigitation
- Basal surface of epithelial cells
- Basal infoldings
- The way to increase surface area
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialcells
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialcellsarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Pinterest: https://www.pinterest.de/lecturiomedical
• LinkedIn: https://www.linkedin.com/company/lecturio-medical/
- published: 11 Aug 2015
- views: 24387
7:35
Epithelial Cell Polarity – Histology | Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
T...
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cell Polarity” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialpolarity
► LEARN ABOUT:
- Epithelial cell polarity
- Apical domains
- Lateral domains
- Basal domains
- Surface modifications of epithelial cells
- Microvilli (brush border)
- Stereocilia
- Cilia
- Structure of microvilli and their function
- Actin filaments
- Fimbrin
- Villin
- Plasmalemma
- Lateral extensions
- Linkage to cell membrane
- Structure of stereocilia and their function
- Structure of cilia and their function
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialpolarity
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialpolarityarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Pinterest: https://www.pinterest.de/lecturiomedical
• LinkedIn: https://www.linkedin.com/company/lecturio-medical/
https://wn.com/Epithelial_Cell_Polarity_–_Histology_|_Lecturio
► Sign up here and try our FREE content: http://lectur.io/freecontentyt
► If you’re an medical educator or faculty member, visit: http://lectur.io/medytb2u
This video “Epithelial Cell Polarity” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialpolarity
► LEARN ABOUT:
- Epithelial cell polarity
- Apical domains
- Lateral domains
- Basal domains
- Surface modifications of epithelial cells
- Microvilli (brush border)
- Stereocilia
- Cilia
- Structure of microvilli and their function
- Actin filaments
- Fimbrin
- Villin
- Plasmalemma
- Lateral extensions
- Linkage to cell membrane
- Structure of stereocilia and their function
- Structure of cilia and their function
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialpolarity
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialpolarityarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Pinterest: https://www.pinterest.de/lecturiomedical
• LinkedIn: https://www.linkedin.com/company/lecturio-medical/
- published: 11 Aug 2015
- views: 87854
4:38
Classification of Epithelial Tissue – Histology | Lecturio
This video “Classification of Epithelial Tissue” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialclassifica...
This video “Classification of Epithelial Tissue” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialclassification
► LEARN ABOUT:
- Classifying epithelium types based on cell shape and cell layers
- Different types of epithelial tissue:
- Simple epithelial tissue
- Simple squamous epithelium
- Simple cuboidal epithelia
- Simple columnar epithelia
- Stratified epithelial tissue
- Stratified squamous nonkeratinized epithelia
- Stratified cuboidal epithelia
- Stratified keratinized epithelia
- Stratified columnar epithelia
- Pseudostratified columnar epithelium
- Transitional epithelium
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialclassification
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialclassiarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Twitter: https://twitter.com/LecturioMed
https://wn.com/Classification_Of_Epithelial_Tissue_–_Histology_|_Lecturio
This video “Classification of Epithelial Tissue” is part of the Lecturio course “Histology” ► WATCH the complete course on http://lectur.io/epithelialclassification
► LEARN ABOUT:
- Classifying epithelium types based on cell shape and cell layers
- Different types of epithelial tissue:
- Simple epithelial tissue
- Simple squamous epithelium
- Simple cuboidal epithelia
- Simple columnar epithelia
- Stratified epithelial tissue
- Stratified squamous nonkeratinized epithelia
- Stratified cuboidal epithelia
- Stratified keratinized epithelia
- Stratified columnar epithelia
- Pseudostratified columnar epithelium
- Transitional epithelium
► THE PROF: Your lecturer is Professor Geoff Meyer. He is currently teaching at the School of Anatomy, Physiology and Human Biology at the University of Western Australia (UWA). As an leading anatomy and histology expert he is also coordinator of the Federative International Program for Anatomical Terminologies (FIPAT) of the International Federation of Associations of Anatomists (IFAA). Aside from medical research on the ovarian function, steroidogenesis, corpus luteum, angiogenesis and microcirculation Geoff Meyer’s research activities focus on developing innovative, computer-aided learning and teaching tools. Being such innovative, Geoff Meyer has received a number of awards for his work, including the Australian University Teaching Award.
► LECTURIO is your single-point resource for medical school:
Study for your classes, USMLE Step 1, USMLE Step 2, MCAT or MBBS with video lectures by world-class professors, recall & USMLE-style questions and textbook articles. Create your free account now: http://lectur.io/epithelialclassification
► INSTALL our free Lecturio app
iTunes Store: https://app.adjust.com/z21zrf
Play Store: https://app.adjust.com/b01fak
► READ TEXTBOOK ARTICLES related to this video:
Epithelium — Functions and Types of Epithelial Tissue
http://lectur.io/epithelialclassiarticle
► SUBSCRIBE to our YouTube channel: http://lectur.io/subscribe
► WATCH MORE ON YOUTUBE: http://lectur.io/playlists
► LET’S CONNECT:
• Facebook: https://www.facebook.com/lecturio.medical.education.videos
• Instagram: https://www.instagram.com/lecturio_medical_videos
• Twitter: https://twitter.com/LecturioMed
- published: 11 Aug 2015
- views: 81214
23:51
Epithelium
Access my FREE Online Membership today → https://www.thenotedanatomist.com
___
Unlock my Premium Tutoring Memberships → https://www.thenotedanatomist.com/premiu...
Access my FREE Online Membership today → https://www.thenotedanatomist.com
___
Unlock my Premium Tutoring Memberships → https://www.thenotedanatomist.com/premium-memberships
Lifetime Access to Online Anatomy Course
Foundational Q&A Cards Per Video
Notes and Key Takeaways
Downloadable Documents
Flashcards for Each Course
Weekly Group Tutoring Sessions
Direct Tutoring Sessions
___
Discover A Simplified Approach to Master the Complexity of Anatomy with me, Dr. David Morton ... The Noted Anatomist!
------------------------------------------------------------------
A brief overview of epithelial tissue:
0:00. Intro to epithelium
0:15. What is epithelium?
3:08. Classifications of epithelium
- 3:40. Simple squamous epithelium
- 6:57. Simple cuboidal epithelium
- 8:43. Simple columnar epithelium
- 10:45. Stratified squamous epithelium
- 13:43. Urinary (transitional) epithelium
- 15:30. Pseudostratified ciliated columnar epithelium
18:30. Cilia
19:42. Microvilli
21:50. Practice question
23:08. Review (In a nutshell)
23:13. Acknowledgments
https://wn.com/Epithelium
Access my FREE Online Membership today → https://www.thenotedanatomist.com
___
Unlock my Premium Tutoring Memberships → https://www.thenotedanatomist.com/premium-memberships
Lifetime Access to Online Anatomy Course
Foundational Q&A Cards Per Video
Notes and Key Takeaways
Downloadable Documents
Flashcards for Each Course
Weekly Group Tutoring Sessions
Direct Tutoring Sessions
___
Discover A Simplified Approach to Master the Complexity of Anatomy with me, Dr. David Morton ... The Noted Anatomist!
------------------------------------------------------------------
A brief overview of epithelial tissue:
0:00. Intro to epithelium
0:15. What is epithelium?
3:08. Classifications of epithelium
- 3:40. Simple squamous epithelium
- 6:57. Simple cuboidal epithelium
- 8:43. Simple columnar epithelium
- 10:45. Stratified squamous epithelium
- 13:43. Urinary (transitional) epithelium
- 15:30. Pseudostratified ciliated columnar epithelium
18:30. Cilia
19:42. Microvilli
21:50. Practice question
23:08. Review (In a nutshell)
23:13. Acknowledgments
- published: 09 May 2020
- views: 167606
6:31
Epithelial Cell JUNCTIONS
Please like and subscribe to help me make more videos! :-D
CREDITS:
Video Copilot - textures
FROM TURBOSQUID:
Human Anatomy for Simulation - by FujiMedical3D...
Please like and subscribe to help me make more videos! :-D
CREDITS:
Video Copilot - textures
FROM TURBOSQUID:
Human Anatomy for Simulation - by FujiMedical3D
Pixabay - Red Blood Cells video
https://wn.com/Epithelial_Cell_Junctions
Please like and subscribe to help me make more videos! :-D
CREDITS:
Video Copilot - textures
FROM TURBOSQUID:
Human Anatomy for Simulation - by FujiMedical3D
Pixabay - Red Blood Cells video
- published: 08 Mar 2018
- views: 95388
4:40
Epithelial Tissue - What Is Epithelial Tissue - Functions Of Epithelial Tissue - Epithelial Cells
In this video we look at what is epithelial tissue, some of the functions of epithelial tissue, and the different types of epithelial cells.
Epithelial tissu...
In this video we look at what is epithelial tissue, some of the functions of epithelial tissue, and the different types of epithelial cells.
Epithelial tissue
What is epithelial tissue, where is it located, and what are its functions structure?
Epithelial tissue is one of the four major types of tissue in the body and it can be found throughout many parts of the body. It lines many of the structures of the respiratory tract such as the trachea, bronchi, bronchioles and alveoli, which are the tiny air sacs in the lungs. It also lines most of the digestive tract, the epidermis of skin, the oral cavity and many of the glands of the body.
Epithelial tissues have some common characteristics. It is comprised of tightly packed cells, with very little extracellular space. They also have an apical, or free surface that is exposed to an internal body space, or the external environment, and a basal, or deep surface that is attached to a thin basement membrane, which is connected to connective tissue, as you can see here.
They also lack blood vessels, which is called avascular, so they get nutrients from their apical free surface or by diffusion across their basal surface from the underlying connective tissue. Epithelial tissue is also innervated, which means they have a rich supply of nerves, and epithelial cells can reproduce themselves, which is important because they go through severe wear and tear, such as in the skin, and respiratory and digestive tracts.
Epithelial tissue has several important functions. It provides protection, as the skin protects the internal body from bacteria and other harmful substances. It provides sensory functions in the skin, nose, eyes and ears. Epithelial cells are important in secretions, as they secrete hormones, sweat, digestive juices and mucus. And epithelial tissue is important in absorption, such as nutrients in the gut, and the exchange of gases in the lungs.
Cell structure
Epithelial cells are classified based on their shape or their number of layers.
Based on shape they can be squamous, which are flat, wide and a bit irregular, these are found in the air sacs in the lungs. They can be cuboidal, which are similar to a cube, about as tall as wide, and have a spherical nucleus. Columnar cells are taller than they are wide, and have an oval shaped nucleus. Pseudostratified cells, as you can see here, have varying heights, as not all of them reach the apical or top surface, but they all do connect to the basement membrane.
Some epithelial cells may contain goblet cells, which secrete mucin, which forms mucus that helps with lubrication and protection, and some cells have extensions called cilia, which are sensory organs and also provide movement of mucus away from the lungs and toward the mouth. And some epithelial cells have tiny fingerlike projections called microvilli which is often termed the brush border. Microvilli helps to increase the surface area for digesting and absorbing nutrients in the intestine.
Based on layers, epithelial cells are classified in three different ways, simple, stratified, and pseudostratified. Simple epithelium is only one cell layer thick, and all cells are in direct contact with the basement membrane. There is simple squamous, simple cuboidal, and simple columnar epithelium.
Stratified epithelium have two or more layers of cells. Only the deepest basal layer cells have direct contact with the basement membrane and their formation looks like a brick wall. This formation provides better structural support and protection from wear or tear. Again, there are stratified squamous, stratified cuboidal, and stratified columnar epithelium.
And pseudostratified epithelium is comprised of pseudostratified cells we discussed earlier.
Two other notes regarding epithelial tissue. There are also transitional epithelium, which can be in a relaxed or stretched state. In a relaxed state, they have umbrella looking rounded cells at the top apical surface, and the bottom basal cells appear cuboidal. In a stretched state, the top cells flatten and appear squamous. Some of these cells will also have two nuclei. Transitional epithelium is found in the urinary tract.
Timestamps
0:00 Epithelial tissue in the body
0:22 Common characteristics of epithelial tissues
1:11 Functions of epithelial tissue
1:45 Epithelial cells based on shape - squamous, cuboidal, columnar, pseudostratified
2:42 Epithelial cells based on layers - simple, stratified, pseudostratified
2:52 Simple epithelium
3:03 Stratified epithelium
3:32 Transitional epithelium
3:55 Keratinized stratified squamous epithelium
https://wn.com/Epithelial_Tissue_What_Is_Epithelial_Tissue_Functions_Of_Epithelial_Tissue_Epithelial_Cells
In this video we look at what is epithelial tissue, some of the functions of epithelial tissue, and the different types of epithelial cells.
Epithelial tissue
What is epithelial tissue, where is it located, and what are its functions structure?
Epithelial tissue is one of the four major types of tissue in the body and it can be found throughout many parts of the body. It lines many of the structures of the respiratory tract such as the trachea, bronchi, bronchioles and alveoli, which are the tiny air sacs in the lungs. It also lines most of the digestive tract, the epidermis of skin, the oral cavity and many of the glands of the body.
Epithelial tissues have some common characteristics. It is comprised of tightly packed cells, with very little extracellular space. They also have an apical, or free surface that is exposed to an internal body space, or the external environment, and a basal, or deep surface that is attached to a thin basement membrane, which is connected to connective tissue, as you can see here.
They also lack blood vessels, which is called avascular, so they get nutrients from their apical free surface or by diffusion across their basal surface from the underlying connective tissue. Epithelial tissue is also innervated, which means they have a rich supply of nerves, and epithelial cells can reproduce themselves, which is important because they go through severe wear and tear, such as in the skin, and respiratory and digestive tracts.
Epithelial tissue has several important functions. It provides protection, as the skin protects the internal body from bacteria and other harmful substances. It provides sensory functions in the skin, nose, eyes and ears. Epithelial cells are important in secretions, as they secrete hormones, sweat, digestive juices and mucus. And epithelial tissue is important in absorption, such as nutrients in the gut, and the exchange of gases in the lungs.
Cell structure
Epithelial cells are classified based on their shape or their number of layers.
Based on shape they can be squamous, which are flat, wide and a bit irregular, these are found in the air sacs in the lungs. They can be cuboidal, which are similar to a cube, about as tall as wide, and have a spherical nucleus. Columnar cells are taller than they are wide, and have an oval shaped nucleus. Pseudostratified cells, as you can see here, have varying heights, as not all of them reach the apical or top surface, but they all do connect to the basement membrane.
Some epithelial cells may contain goblet cells, which secrete mucin, which forms mucus that helps with lubrication and protection, and some cells have extensions called cilia, which are sensory organs and also provide movement of mucus away from the lungs and toward the mouth. And some epithelial cells have tiny fingerlike projections called microvilli which is often termed the brush border. Microvilli helps to increase the surface area for digesting and absorbing nutrients in the intestine.
Based on layers, epithelial cells are classified in three different ways, simple, stratified, and pseudostratified. Simple epithelium is only one cell layer thick, and all cells are in direct contact with the basement membrane. There is simple squamous, simple cuboidal, and simple columnar epithelium.
Stratified epithelium have two or more layers of cells. Only the deepest basal layer cells have direct contact with the basement membrane and their formation looks like a brick wall. This formation provides better structural support and protection from wear or tear. Again, there are stratified squamous, stratified cuboidal, and stratified columnar epithelium.
And pseudostratified epithelium is comprised of pseudostratified cells we discussed earlier.
Two other notes regarding epithelial tissue. There are also transitional epithelium, which can be in a relaxed or stretched state. In a relaxed state, they have umbrella looking rounded cells at the top apical surface, and the bottom basal cells appear cuboidal. In a stretched state, the top cells flatten and appear squamous. Some of these cells will also have two nuclei. Transitional epithelium is found in the urinary tract.
Timestamps
0:00 Epithelial tissue in the body
0:22 Common characteristics of epithelial tissues
1:11 Functions of epithelial tissue
1:45 Epithelial cells based on shape - squamous, cuboidal, columnar, pseudostratified
2:42 Epithelial cells based on layers - simple, stratified, pseudostratified
2:52 Simple epithelium
3:03 Stratified epithelium
3:32 Transitional epithelium
3:55 Keratinized stratified squamous epithelium
- published: 12 Feb 2018
- views: 593255
9:27
Epithelial tissue
Brief overview and definition of epithelial tissue.
Brief overview and definition of epithelial tissue.
https://wn.com/Epithelial_Tissue
Brief overview and definition of epithelial tissue.
- published: 19 Mar 2017
- views: 48208
12:16
Epithelial Cell Junctions
My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
Fo...
My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.
https://wn.com/Epithelial_Cell_Junctions
My goal is to reduce educational disparities by making education FREE.
These videos help you score extra points on medical school exams (USMLE, COMLEX, etc.)
For educational purposes only; NOT medical or other advice.
Some videos contain mild profanity and hyperbole solely used to assist with memorization. Viewer discretion advised.
Opinions are entirely my own.
- published: 18 Apr 2021
- views: 48918
1:13
Epithelial Cells in Urine Test | Causes & Symptoms Of Epithelial Cells in Urine | Urine Analysis |
An epithelial cells in urine test looks at a sample of your urine under a microscope to count the number of epithelial cells in your urine.
Epithelial cells ar...
An epithelial cells in urine test looks at a sample of your urine under a microscope to count the number of epithelial cells in your urine.
Epithelial cells are a type of cell that covers the inside and outside of the surfaces of your body And found in mentioned areas... on your skin, blood vessels, and organs, including your urinary tract.
Why u need this test?
Your may be asked for this test ...
as part of your regular checkup
or if the results of your visual or chemical urine tests weren't normal.
also if you have symptoms of a urinary or kidney disorder. These symptoms include the following:
Frequent and/or painful urination
Abdominal pain
Back pain
Results & Interpretation
urine test may show that you have “few,” “moderate,” or “many” epithelial cells in your urine.
Having a moderate number or many cells may indicate the following:
a yeast or urinary tract infection (UTI)
kidney or liver disease
certain kinds of cancer
https://wn.com/Epithelial_Cells_In_Urine_Test_|_Causes_Symptoms_Of_Epithelial_Cells_In_Urine_|_Urine_Analysis_|
An epithelial cells in urine test looks at a sample of your urine under a microscope to count the number of epithelial cells in your urine.
Epithelial cells are a type of cell that covers the inside and outside of the surfaces of your body And found in mentioned areas... on your skin, blood vessels, and organs, including your urinary tract.
Why u need this test?
Your may be asked for this test ...
as part of your regular checkup
or if the results of your visual or chemical urine tests weren't normal.
also if you have symptoms of a urinary or kidney disorder. These symptoms include the following:
Frequent and/or painful urination
Abdominal pain
Back pain
Results & Interpretation
urine test may show that you have “few,” “moderate,” or “many” epithelial cells in your urine.
Having a moderate number or many cells may indicate the following:
a yeast or urinary tract infection (UTI)
kidney or liver disease
certain kinds of cancer
- published: 09 Jan 2023
- views: 47998