Nervous System (Part I & II)

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Across
  1. 1. This type of neuroglial cell is phagocytic.
  2. 3. Nerves in the _________ nervous system cannot regenerate.
  3. 4. The nervous system responsible for the fight-or-flight response
  4. 6. The enteric nervous system regulates activity in the _______.
  5. 11. The nervous system plays an essential role in maintaining _______.
  6. 12. This type of neural cell can replicate and divide.
  7. 13. The somatic nervous system conveys output from the CNS to _______ muscles only.
  8. 15. Tumor of the neuroglial cells.
  9. 17. Multiple sclerosis is the _________ of the myelin sheath.
  10. 18. The myelinated axons of a neuron mostly make up ________.
Down
  1. 1. Oligodendrocytes and Schwann cells form a _______ around the axons in the PNS and CNS. (2 words)
  2. 2. Myelinated axons are lined with a series of _________ while unmyelinated axons are encased by ________. (2 words)
  3. 5. Action potentials occur in this structure.
  4. 7. Remaining nucleus and cytoplasm of a Schwann cell.
  5. 8. Bundle of axons.
  6. 9. _______ degeneration occurs after an axonal injury.
  7. 10. This condition damages the peripheral nerves due to high blood glucose levels.
  8. 14. Gaps between the myelin sheath are called _______.
  9. 16. _______ carries impulses away from the cell body.
  10. 17. _______ carries impulses toward the cell body.