User's Manual

A. Brain—one of the most important organs; responsible for thinking, moving,

speaking, and more

B. Corpus callosum—large bundle of nerve fibers that connects the left and

right hemispheres of the brain together

C. Eye socket—the cavity of the skull in which the eye is located

D. Cerebellum—coordinates body movement and maintains the body’s balance

and equilibrium; located near the spinal cord

E. Sinus cavity—air-filled spaces within the skull and face that filter and

moisten ingested air

F. Optic nerve—sends visual information from the retina (part of the eye) to

the brain

G. Jawbone—bone of the lower jaw that holds the lower teeth in place

H. Teeth—hard, bonelike structures in the upper and lower jaws used for

chewing and biting

I. Carotid artery—main artery that supplies the head and neck with

oxygenated blood