cranial nerves and their basic functions

Olfactory

purely sensory; carries impulses for the sense of smell

optic

purely sensory; carries impulses for vision

oculomotor

supplies motor fibers to four of the six muscles

trochlear

supplies motor fibers for one external eye muscle

trigeminal

conducts sensory impulses from the skin of the face and mucous of the nose and mouth

abducens

supplies motor fibers to the lateral rectus muscle, which rolls the eye laterally

facial

activates the muscles of facial expression and the lacriminal and salivary glands

vestibulocochlear

purely sensory, vestibular branch transmits impulses for the sense of balance

glossopharyngeal

supplies motor fibers to the pharynx (throat) that promote swallowing and saliva production

vagus

fibers carry sensory impulses from and motor impulses to the pharynx, larynx, and the abdominal and thoracic viscera

accessory

mostly motor fibers that activate the sternocleidomastoid and trapezius muscles

hypoglossal

motor fibers control tongue movements