Cranial Nerves Basic Functions

I - Olfactory

Olfaction

II - Optic

Vision

III - Oculomotor

Eye movement, eyelid elevation, pupillary constriction, lens shape

IV - Trochlear

Eye movement

V - Trigeminal

Face, sinus, and teeth sensation; Mastication

VI - Abducent

Eye movement

VII - Facial

Facial expression; Taste; Tears, snot, and saliva

VIII - Vestibulocochlear

Equilibrium/orientation; Hearing

IX - Glossopharyngeal

Taste; Throat, sinus, and middle ear sensation; Pharyngeal control; Saliva

Monitors blood pressure and gases

X - Vagus

The Wanderer

Sensory and motor functions including pharynx, larynx, and deep thoracoabdominal viscera (e.g. heart, lungs, parts of GI tract)

XI - Spinal accessory

Head/neck/scapular movement

XII - Hypoglossal

Tongue movement