cool puzzle

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Across
  1. 2. smaller than ulnar and radial nerves
  2. 7. supplies blood to skin and muscles
  3. 9. controlled voluntarily
  4. 11. bones that form bridge of nose
  5. 13. muscles that draw the scalp backward
  6. 14. science of the nervous system
  7. 16. what flows through the body?
Down
  1. 1. originates in the brain
  2. 3. controls and coordinates all body functions
  3. 4. what purifies the body?
  4. 5. acts to perform an action for the body
  5. 6. contracts and moves parts of the body
  6. 8. act of breathing
  7. 10. what controls the blood flow in the body?
  8. 12. study of minute structures
  9. 15. main structure of the body