body systems crossword puzzle

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Across
  1. 2. Connects the brain to the spinal cord, controlling automatic functions.
  2. 4. Cord Major pathway for transmitting signals between the brain and the body.
  3. 6. Outer layer of the brain responsible for processing information.
  4. 8. Neuron Type of neuron transmitting sensory input to the brain.
  5. 9. Brain region regulating homeostasis and hormones.
  6. 11. Neuron Type of neuron transmitting signals to muscles.
  7. 13. Involuntary response to stimuli.
  8. 14. The part controlling voluntary muscle movements.
  9. 17. Branch-like structures receiving signals.
  10. 19. Long projection that transmits impulses away from the cell body.
  11. 20. Basic unit of the nervous system.
Down
  1. 1. The gap between neurons where communication occurs.
  2. 3. Relay center for sensory information.
  3. 5. Chemical messenger used for communication between neurons.
  4. 7. The part controlling involuntary functions like heart rate.
  5. 10. Fatty substance that insulates axons.
  6. 12. The nervous system outside the brain and spinal cord.
  7. 15. Part of the brainstem involved in breathing and heartbeat.
  8. 16. Largest part of the brain responsible for higher functions.
  9. 18. Coordinates movement and balance.