CN Functions and Locations

olfactory bulb and tract

smell sensory

optic nerve, tract, chiasma

vision sensory

oculomotor

eye movement (motor) and pupil constriction

trochlear

eye movement (motor) - superior oblique muscle

trigeminal

facial sensation (sensory) and mastication muscles (motor)

abducens

eye movement (motor) - abduction of the eye with lateral rectus muscle

facial

facial expression (motor), taste from anterior tongue (sensory), lacrimal and salivary gland secretion (parasympathetic)

vestibulocohlear

hearing (cochlear nerve) and balance (vestibular nerve)

glossopharyngeal

taste from posterior tongue (sensory), swallowing (motor), salivation (parasympathetic), and monitors carotid body (chemoreception)

vagus

parasympathetic control of heart, lungs, digestive tract (autonomic), sensory from the throat, thoracic, and abdominal viscera

accessory

motor to sternocleidomastoid and trapezius muscles (should and head movement)

hypoglossal

motor control of tongue muscles (speech and swallowing)