Brain & Behavior Test #1

3 Major CNS Components

Spinal Cord, Brainstem, Forebrain

Cranial nerve with smell function

Olfactory

Cranial nerve with vision function

Optic

Cranial nerve with eye movement function (3)

Oculomotor

Cranial nerve with eye movement function (4)

Trochlear

Cranial nerve with masticatory movements and facial sensation

Trigeminal

Cranial nerve with eye movement function (6)

Abdurens

Cranial nerve with facial movement and some taste sensation

Facial

Cranial nerve with hearing and balance functions

Auditory vestibular

Cranial nerve with tongue and pharynx movement and sensation

Glossopharyngeal

Cranial nerve with heart, blood vessels, viscera, movement of larynx and pharynx functions

Vagus

Cranial nerve with neck movement function

Spinal accessory

Cranial nerve with tongue movement function

Hypoglossal

A collection of axon fibers in the brain and spinal cord (within the CNS).

Tract

A bundle of axon fibers running together outside the CNS.

Nerve

Corpus Callosum

Band of nerve fibers that connects the two brain hemispher

Ventricles

Fluid-filled cavities in the brain. Filled with cerebral spinal fluid.

Enteric Nervous System (ENS)

Formed by a network of neurons embedded in the lining of the gastrointestinal tract. The “second brain.”