nercous system

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Across
  1. 3. made up of protein and fatty substances
  2. 5. a neuron that transmits impulses
  3. 7. of ravier a gap in the myelin
  4. 10. sensory receptor able to receive stimuli
  5. 13. impulses
  6. 14. type of glial cell in the peripheral
  7. 17. sensory neurons that carry nerve impulses
  8. 18. transmit information to other bodily cells.
  9. 19. controls the activities of the body.
  10. 25. membrane that receives signals
  11. 26. the end of a nerve fiber
  12. 28. maintaining homeostatic control in the N.S.
  13. 29. the nucleus containing central part of a neuron
Down
  1. 1. main interaction with receptors
  2. 2. able to detect a change in the environment
  3. 4. in control of the fight or flight response.
  4. 6. a chemical substance that is released
  5. 8. terminal release transmitter substances into a gap called the synaptic cleft.
  6. 9. white cord-like bundle of fibers
  7. 11. the brain and spinal cord.
  8. 12. a structure containing a number of
  9. 15. important role in the axon
  10. 16. cell bodies
  11. 20. allow neurons to transmit electrical and chemical signals.
  12. 21. junction between two nerve cells
  13. 22. a short branched extension of a nerve cell
  14. 23. sensory neurons that carry
  15. 24. large granular body found in neurons.
  16. 27. consist of afferent nerves or motor nerves.