| A | B |
| cerebrum | learning part of the brain |
| cerebellum | movement, coordination and balance part of the brain |
| brain stem | controls the breathing, heart and digestive process |
| neuron | name for a nerve cell |
| motor neuron | transmits messages to the muscles |
| sensory neuron | transmits messages from sense receptors to CNS |
| interneurons | form electrical connections |
| cell body | center of the neuron and has a neucleus |
| axon | carries impulses away from cell body |
| dendrite | carries messages toward the cell body |
| central nervous system | brain and spinal cord |
| peripheral nervous system | the nerves leading to the arm, and legs from the spinal cord |
| sympathetic nervous system | prepares the body for flight or fight |
| parasympathetic nervous system | slows the body down after a scare |
| autonomic nervous system | controls the involuntary functions |
| reflex | body's response to a stimulus |