Nervous System

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Across
  1. 2. seperation of the sodium and the potassium ions on either side of the cell membrance causes this
  2. 3. ion that has a higher concentration outside the cell
  3. 6. type of nerve that directs the impulses toward the central nervous system
  4. 7. the color of unmyelinated nervous tissue
  5. 11. type of nerve that directs nerve impulses away from the cns
  6. 13. enzyme responsible for breaking down acetylcholine
  7. 14. part of nervous system that conducts nerve impulses away
  8. 17. type of cholinergic receptor that has effects on the heart, GI tract, and bronchioles
  9. 19. the brain and spinal cord are part of this
  10. 20. name of the connective tissue that covers the brain and spinal cord
  11. 22. the largest part of the mammalian brain
Down
  1. 1. the part of the neuron that receives the stimuli
  2. 2. rest and restore part of the nervous system
  3. 4. fatty substance covering some axons
  4. 5. name of the glial cells in the central nervous system
  5. 8. chemical released by the presynaptic neuron
  6. 9. name of the glial cells in the peripheral nervous system
  7. 10. a neurotransmitter that is involved in automatic functions
  8. 12. the part of the brain that allows for coordination, balance, and posture
  9. 15. junction between two neurons
  10. 16. largest cranial nerve in the body
  11. 18. response when the nervous system instructs the body to do something
  12. 21. one function of the nervous system