The Nervous System

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Across
  1. 2. an action that happens before the brain has time to think about the action
  2. 4. The ___ nervous system controls involuntary movements.
  3. 7. The ___ consists of millions of nerve cells all over the body.
  4. 9. nerve cells
  5. 12. receives the electrical impulse from another neuron
  6. 14. sends the electrical impulse on to the next neuron
  7. 15. acts as the command center for the whole body
  8. 16. the gap between neurons over which impulses cross
Down
  1. 1. the largest part of the brain
  2. 3. ___ neurons send messages from the brain to the muscles.
  3. 5. ___ sheath insulate and protects the axon
  4. 6. ___ neurons carry messages to the brain.
  5. 8. The brain stem ___ the brain to the spinal cord.
  6. 10. The ___ nervous system controls skeletal movement.
  7. 11. The ___ nervous system consists of the brain and the spinal cord.
  8. 13. The ____ cord is the main pathway of information that connects the brain to the rest of the body.