Chapter 9 Crossword

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Across
  1. 2. Includes the brain & spinal cord
  2. 5. Form the myelin sheath of the CNS
  3. 6. Star-shaped cells that anchor and support neurons
  4. 8. A fiber bundle in the CNS
  5. 10. Surrounds the whole nerve
  6. 12. Neuron Fibers that conduct impulses to the cell body
  7. 14. Act as phagocytes to remove pathogens and dead neurons
  8. 17. Surrounds each fascicle
  9. 21. A type of neuron that relay information from place to place within the CNS
Down
  1. 1. Neuron Fibers that conduct impulse toward the cell body
  2. 3. The functional cells of the nervous system
  3. 4. Surrounds each individual fiber
  4. 7. Cells that Line ventricles in the Brain; fluid-filled cavities
  5. 9. A type of Neuron that conducts impulses from the CNS to muscles and glands
  6. 11. A white-ish, fatty substance that insulates and protects the axon
  7. 13. A type of Neuron that conducts impulse to the spinal cord and brain
  8. 15. Protect us by initiating rapid responses; such as pulling your hand away from a hot stove
  9. 16. Voluntary; Skeletal Muscle
  10. 18. A fiber bundle in the PNS
  11. 19. Includes the Cranial & Spinal Nerves
  12. 20. Involuntary; Smooth Muscle, Cardiac Muscle, & Glands