| A | B |
|---|
| Nervous System | controls all of your body's activities |
| Parts of the Nervous System | Brain, Spinal Cord, and the Network of Nerves |
| Brain | Its job is to receive and send messages |
| Cerebrum | The largest part of the brain |
| Sense organs | eyes, ears, nose, tongue, and skin |
| Corpus Callosum | a thick connection of the two hemispheres of the cerebrum |
| Cerebellum | part of the brain that controls all body movements and maintains balance |
| Voluntary Responses | Involve purposeful movement |
| Medulla | Connects the brain to the spinal cord |
| Involuntary Responses | Occur on their own and don't require thought |
| Neurons | special cells that carry impulses from the nervous system to different parts of your body |
| Dendrites | carry nerve impulses from neighboring cells toward the cell body of the neuron. |
| Axons | carry nerve impulses away from the cell body to other neurons. |
| Myelin Sheath | acts as insulation so that nerve impulses don't stray off course |
| Terminal Branch | End of an Axon |
| Synapse | tiny space between terminal branches |
