Nervous System Terminology

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Across
  1. 4. Nerves that originate from the brain
  2. 6. The part of a neuron that brings messages toward the nerve cell
  3. 10. The part of a neuron that sends messages away from the nerve cell
  4. 11. The _____ nervous system includes all neurons outside of the CNS
  5. 13. The ____ sheath is the fatty protective layer surrounding axons
  6. 14. A _____ nerve carries both sensory and motor signals
  7. 15. Neurons that transmit signals from the CNS to effector organs (muscles or glands)
  8. 16. The division of the autonomic nervous system that controls your "fight or flight" response
Down
  1. 1. A bundle of many neurons
  2. 2. The _____ nervous system includes the brain and spinal cord
  3. 3. Neurons that transmit signals from sensory organs to the CNS
  4. 5. The part of the "motor" division that controls involuntary muscles
  5. 7. Nerves that originate from the spinal cord
  6. 8. A chemical signal that moves between two neurons
  7. 9. The part of a neuron where the nucleus is found
  8. 12. The microscopic gap between two neurons