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Across 5. the junction between an axon and another cell . 7. regulate actions that happen automatically (3 words) 9. type of cell (basic unit of the nervous system) 10. carry nerve impulses toward a neuron's cell body . 12. grows throughout adolescence and aids creativity and problem solving (2 words) 14. pass impulses from one neuron to another. 16. send nerve impulses through muscles and glands. (2 words) 17. "emotional center" responsible for your impulses 18. "thinking" region of the brain (2 words) 19. make up about 25% of the brains weight right hemisphere controls muscles on left side and left controls the muscles on the right.

Down 1. includes the network of nerves that links the rest of your body to your brain and spinal cord. (3 words) 2. control center of the body (3 words) 3. impulses travel among these toward other cells . 4. coordinates your body's movements 6. carry signals tat control voluntary actions (3 words) 8. gathers info about your external and internal environment . (2 words) 11. increases the speed of impulse . (2 words) 13. control's the cell's basic functions. (2 words) 15. controls body's involuntary actions (2 words)