Lab 2 cranial nerves

Cranial nerve 1

Olfactory

Cranial nerve 2

Optic

Cranial nerve 3

Oculomotor

Cranial nerve 4

Trochlear

Cranial nerve 5

Trigeminal

Cranial nerve 6

Abducens

Cranial nerve 7

Facial

Cranial nerve 8

Vestibulocochlear

Cranial nerve 9

Glossopharyngeal

Cranial nerve 10

Vagus

Cranial nerve 11

Spinal accessory

Cranial nerve 12

Hypoglossal

Olfactory nerve function

Carries different impulses for sense of smell

Optic nerve function

Carries impulses for vision.

Oculomotor nerve function

Eye movement and pupillary diameter

Trochlear nerve function

Primarily motor nerve that directs the eyeball. Moves eye down and out (south east)

Trigeminal nerve function

Sensory in forehead, cheek, and jaw. Motor for mastication/ chewing

Abducens nerve function

Motor nerve influencing eye movement. Pulls eye away from midline- abduction

Facial nerve function

Motor function is facial expression. Sensory includes taste on front 2/3 of tongue

Vestibulocochlear nerve function

Solely sensory- equilibrium (balance) and hearing

Glossopharyngeal nerve function

Motor controls part of tongue and throat- swallowing. Sensory taste on back 1/3 of tongue

Vagus nerve function

Sensory is taste in throat, motor is parasympathetic fibers in heart, lungs, and visceral organs. Provides rest to these structures.

Spinal accessory nerve function

Motor moves trapezius and sternocleidomastoid. Turns head and shoulder

Hypoglossal nerve function

Motor to tongue, swallowing, speech, position of tongue