Nervous System Organization & Neuron Structure

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Across
  1. 1. involuntary muscle control (ex: your heart beating)
  2. 5. electrical signal transmitted by neurons
  3. 6. receives electrical impulses from other neurons
  4. 8. neurons with many processes
  5. 9. processing and interpreting the information
  6. 12. nerves that originate in the brain
  7. 15. root word meaning "nerve"
  8. 16. contains the brain and spinal cord
  9. 17. neurons that carry impulses away from the CNS
  10. 18. transfers electrical impulses from the cell body to the synapse
  11. 19. voluntary muscle control (ex: flexing your biceps)
  12. 21. detecting changes (stimuli) inside and outside the body
  13. 22. nerves that originate in the spinal cord
  14. 23. activation of muscles (motor output) or glands
Down
  1. 2. connect afferent & efferent neurons
  2. 3. neurons with two processes
  3. 4. consists of nerves branching outside the brain and spinal cord
  4. 7. the cell body; contains the Nucleus, which holds the neuron’s DNA.
  5. 8. sheath protective insulation around an axon
  6. 10. root word meaning "glue"
  7. 11. “nerve-glue”; cells that support, insulate & protect neurons (90% of nerve cells)
  8. 13. cells that conduct impulses around the body (make up only 10% of nerve cells)
  9. 14. root word meaning "marrow" or "spinal cord"
  10. 18. neurons that carry impulses toward the CNS
  11. 19. sends electrical impulses to other neurons
  12. 20. neurons with one process