Physiology Nervous System Crossword

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Across
  1. 2. The junction where one neuron communicates with another.
  2. 4. Support cells that protect, nourish, and maintain neurons.
  3. 5. Long extension that carries signals away from the cell body.
  4. 7. A specialized cell that transmits electrical signals in the nervous system.
  5. 8. Branch-like structure that receives incoming signals.
  6. 11. Division controlling voluntary muscle movement.
  7. 12. “Fight or flight” response system
  8. 13. Division controlling involuntary functions.
  9. 15. Neurotransmitter involved in muscle contraction.
  10. 16. The stable, negative charge of a neuron when not firing.
Down
  1. 1. Organ that processes and controls body functions.
  2. 3. Structure that relays signals between brain and body.
  3. 5. A rapid electrical signal traveling down the axon.
  4. 6. Chemical messenger released at a synapse.
  5. 9. Light-sensitive layer at the back of the eye.
  6. 10. Light-detecting cell in the eye.
  7. 14. Spiral structure in the ear for hearing.