Nervous System Crossword

12345678910111213141516171819
Across
  1. 2. connects sensory and motor neurons
  2. 3. tough outer meninges layer
  3. 5. when vertebrae fail to enclose spinal cord
  4. 8. store neurotransmitters in the synaptic knob
  5. 10. connection between a neuron and another cell
  6. 12. part of nervous system including brain/spinal cord
  7. 13. fluid bathing the brain and spinal cord
  8. 15. matter containing axons
  9. 16. three coverings on brain and spinal cord
  10. 18. part of neuron with gated ion channels
  11. 19. number of spinal nerves coming off spinal cord
Down
  1. 1. receives messages from other cells
  2. 4. way neurons send message across synapse
  3. 6. thin inner meninges layer
  4. 7. cells surrounding and supporting neurons
  5. 9. fatty covering on axon to speed messages
  6. 11. type of potential when inside axon becomes +
  7. 14. part of nervous system outside of brain/spinal cord
  8. 16. type of neuron that produces action
  9. 17. action potentials hop along these