Cranial Nerve Functions

Olfactory (I)

Smell

Optic

Vision

Oculomotor

Movement of eyelid, eyeball, lens accomodation and pupillary constriction

Trochlear

Movement of eyeball, controls superior oblique muscle

Trigeminal

Percieves stimuli (touch, temperature, pain, pressure) from ophthalmic, maxillary, and mandibular branches. Chewing

Abducens

Movement of eyeball, turning eye outward

Vestibulocochlear

Equilibrium and hearing

Glossopharyngeal

Taste, swallowing and speech, secretion of saliva

Facial

Taste, facial expression, secretion of tears, salivation

Vagus

Taste and somatic sensation from pharynx, swallowing, coughing, voice production, smooth muscle contraction of GI tract, slows heart rate, secretion by digestive glands

Accessory

Swallowing, movement of head and shoulders

Hypoglossal

Speech and swallowing