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Cranial Nerves: Sensory and Motor Functions

This document provides information about the 12 cranial nerves, including their names, numbers, sensory and motor functions. It lists the sensory functions of each nerve such as smell, vision, taste, and proprioception. It also describes the motor functions of each nerve such as controlling eye muscles and muscles of facial expression, swallowing, and speech.

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65 views1 page

Cranial Nerves: Sensory and Motor Functions

This document provides information about the 12 cranial nerves, including their names, numbers, sensory and motor functions. It lists the sensory functions of each nerve such as smell, vision, taste, and proprioception. It also describes the motor functions of each nerve such as controlling eye muscles and muscles of facial expression, swallowing, and speech.

Uploaded by

PIOZR
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Sensory Motor

Nerve
Function Function
Olfactory (I) Smell (Olfaction) None

Optic (II) Vision None

Controls 4 of 6 external eye


Occulomotor (III) None
muscles (SR, IR, MR, IO)
Controls superior oblique
Trochlear (IV) Proprioception
eye muscle
Trigeminal (V) V1 (Opthalamic) – anterior
- main sensory nerve of face scalp, upper eye lid, nose, None
- 3 subdivisions nasal cavity, & cornea
V2 (Maxillary) – palate,
upper teeth, skin of cheek, None
upper lip, & lower eyelid
V3 (Mandibular) – anterior
Muscles of mastication
tongue, lower teeth, chin, &
(chewing)
lateral scalp
Controls lateral rectus eye
Abducens (VI) Proprioception
muscle
Facial (VII)
- 5 divisions; temporal, Taste sensations from Facial expression and the
zygomatic, buccal, anterior 2/3 of the tongue secretion of saliva and tears
mandubular & cervical
Vestibular branch –
Vestibulocochlear
equilibrium None
(VIII) Cochlear branch - hearing
Taste sensations from Swallowing and the
Glossopharyngeal (IX) posterior 1/3 of the tongue secretion of saliva
Vagus (X) Slows heart rate, increases
Parasympathetic fibers Sensations from the
peristalsis, & contracts
running to and from heart, innervated structures
muscles of voice production
lungs, & abdominal viscera
Movements of the head &
Accessory (XI) Proprioception shoulders and speech
production
Tongue movements in
Hypoglossal (XII) Proprioception chewing, food mixing, &
speech

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