| A | B |
| brain | the main organ of the nervous system; it controls movement, speech, breathing, memory, learning and emotion |
| spinal cord | a thick cord of nerve tissue that begins at the brain and goes down through the center of the backbone |
| nerve | any of the bundles of fibers that carry messages between the brain or spinal cord and other parts of the body |
| senses | the special body functions, such as sight, hearing, smell, taste or touch |
| sight | the sense by which one is able to see; vision |
| hearing | the sense by which sound is picked up; the ability to hear |
| smell | the sense by which odors are detected |
| taste | the sense that picks up the difference between the sweet, sour, salty, or bitter flavors of things placed in the mouth |
| touch | the sense by which one becomes aware of things in contact with one's skin |
| aware | being conscious of something |
| nervous system | the system in the body that controls all of its actions; includes the brain, the spinal cord, and the nerves |