Cranial & Spinal Nerves

CN I

olfactory

CN I sensory

smell

CN II

optic

CN II sensory

sight

CN III

Oculomotor

CN III motor

opening eyelid, moving eye superiorly, medially, and diagonally; constricting pupils

CN IV

trochlear

CN IV motor

moving eye down and laterally

CN V

trigeminal

CN V motor

chewing and jaw opening and clenching

CN V sensory

conveying sensory data from eyes, nose, mouth, teeth, jaw, forehead, scalp, and facial skin

CN VI

abducens

CN VI motor

moving eye laterally

CN VII

facial

CN VII motor

closing eyes, closing mouth, moving lips and other muscles of facial expression, salivation and lacrimation

CN VII sensory

tasting on anterior tongue

CN VIII

vestibulocochlear

CN VIII sensory

hearing, equilibrium

CN IX

glossopharyngeal

CN IX motor

swallowing, gag sensation, secretion of saliva

CN IX sensory

tasting on posterior tongue

CN X

vagus

CN X motor

palate, pharynx, larynx (speaking and swallowing)

CN X sensory

sensations in pharynx and larynx

CN X sensorimotor

cardiovascular, respiratory, and digestive systems

CN XI

spinal accessory

CN XI motor

contracting muscles of neck and shoulders

CN XII

hypoglossal

CN XII motor

tongue movement, articulating with tongue, swallowing