The Nervous System

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Across
  1. 8. the fatty material that insulates a neuron & helps deliver messages faster
  2. 10. also called terminal branches
  3. 13. outermost layer of the brain made up of gray matter
  4. 15. controls movement and coordination
  5. 16. transmits messages away from the cell body
  6. 20. part of the autonomic system; functions as an emergency system; rest and digest
  7. 22. controls body activities involuntarily
  8. 23. area of white matter that connects the 2 hemispheres
  9. 25. consists of brain & spinal cord; receives, interprets & gives instructions
Down
  1. 1. Consists of nerves that extend from the spinal cord & brain
  2. 2. regulates body temp., metabolism, pituitary gland, & pleasure
  3. 3. transmit messages toward the cell body
  4. 4. area between brain and spinal cord
  5. 5. part of the autonomic system; functions as an emergency system; fight or flight response
  6. 6. nerve cells that are activated by sensory input from the environment
  7. 7. nerve cells that transmit messages
  8. 9. controls the voluntary activities of the body
  9. 11. part of brainstem that links medulla oblongata and thalamus
  10. 12. chemicals released to transmit signals between neurons
  11. 14. transmit neural impulses from the spinal cord to skeletal and smooth muscles; control all our muscles movement
  12. 17. allows for communication between sensory and motor neurons; also known as interneuron
  13. 18. extension of the spinal cord; when cut it can cause death
  14. 19. above the brainstem, between the cerebral hemispheres
  15. 21. produces sensations of arousal or alertness
  16. 24. junction between two neurons