Cranial Nerves

CN I

Olfactory Nerve; Smell; Sensory

CN II

Optic Nerve; Vision; Sensory

CN III

Oculomotor Nerve; Eye movement, upper lid elevation, pupil constriction, accommodation; Motor

CN IV

Trochlear Nerve, Eye movement (superior oblique muscle); Motor

CN V

Trigeminal Nerve; Facial (including ocular) sensation, chewing; Both

CN VI

Abducens Nerve; Eye movement (lateral rectus muscle); Motor

CN VII

Facial Nerve; Facial expression (including eye closure), anterior 2/3 tongue (taste), salivation, tearing; Both

CN VIII

Vestibulo-Cochlear Nerve; Balance and hearing; Sensory

CN IX

Glossopharyngeal Nerve; Taste from posterior 1/3 of tongue, salivation (parotid gland), carotid body reflex, stylopharyngeus muscle (swallowing); Both

CN X

Vagus Nerve; Thoracic and abdominal viscera (parasympathetic control), larynx muscles (voice), pharyngeal muscle (swallowing), aortic arch reflex; Both

CN XI

Spinal Accessory Nerve; Head turning (trapezius and sternomastoid muscles); Motor

CN XII

Hypoglossal Nerve; Tongue movement; Motor