The Nervous System

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Across
  1. 1. Specialized cells that carry messages throughout the body
  2. 4. Neurons that carry information from the central nervous system to the outer parts of the body
  3. 7. The nervous system that excludes all the nerves in your brain and spinal cord
  4. 8. A change in the environment detected by the nervous system
  5. 9. The nervous system allows all the parts of the body to _________
  6. 10. The ear allows for hearing and _______
  7. 12. An involuntary reaction to something
Down
  1. 2. A blood clot in the brain can lead to a ______
  2. 3. The organ protected by the vertebrae
  3. 5. A signal that is transmitted via neurons
  4. 6. Nerves that carry information from the outer body to the central nervous system
  5. 10. Interprets messages sent by the nervous system
  6. 11. The brain and the spinal cord together make up the___