Number

Name of Cranial Nerve

Functions

I

Olfactory

smell

II

Optic

vision

III

Oculomotor

eyelid and eyeball movement

IV

Trochlear

innervates superior oblique
turns eye downward and laterally

V

Trigeminal

chewing 
face & mouth touch & pain

VI

Abducens

turns eye laterally

VII

Facial

controls most facial expressions 
secretion of tears & saliva
taste

VIII

Vestibulocochlear
(auditory)

hearing 
equillibrium sensation

IX

Glossopharyngeal

taste 
senses carotid blood pressure

X

Vagus

senses aortic blood pressure 
slows heart rate 
stimulates digestive organs
taste

XI

Spinal Accessory

controls trapezius & sternocleidomastoid
controls swallowing movements

XII

Hypoglossal

controls tongue movements