The Nervous System- Cells and Organization

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Across
  1. 2. the part of the neuron that receives incoming impulses
  2. 5. the part of the neuron that sends signals away from the cell body
  3. 6. division of the nervous system that is made up of the nerves that branch out from the brain and spinal cord
  4. 7. the division of the nervous system made up of the brain and spinal cord
  5. 8. the division of the nervous system, part of the involuntary division, that maintains body functions while at rest; "resting and digesting"
  6. 10. the information received by the CNS
  7. 12. cells of the PNS that cushion and protect the neuron
  8. 15. the decision making process of the CNS
  9. 16. the open spaces within the myelin sheath
  10. 19. the fatty substance that insulates the neuron and provides for quicker impulses
  11. 20. ciliated cells of the CNS and circulate the cerebrospinal fluid
  12. 21. the information that is sent away from the CNS
  13. 22. cells in the PNS that create the myelin sheath
Down
  1. 1. the division of the nervous system that sends signals TO the brain; the sensory division
  2. 3. the collective term for the cells of the CNS; "nerve glue"
  3. 4. phagocytic cells of the CNS tht dispose of bacteria and debris
  4. 9. the involuntary division of the nervous system; regulates the activity of smooth and cardiac muscles, and glands
  5. 11. the primary impulse conducting cell of the nervous system
  6. 12. the voluntary division of the nervous system; sends signals to skeletal muscles
  7. 13. the division of the nervous system that sends signals AWAY from the brain; the motor division
  8. 14. cells in the CNS that create the myelin sheath
  9. 17. star shaped cells of the CNS that attach the neuron to the blood supply
  10. 18. the part of the neuron that contains the nucleus and organelles