Nervous System

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Across
  1. 3. Largest part of brain.
  2. 5. Send information BETWEEN sensory neurons and motor neurons. Most interneurons are located in the central nervous system.
  3. 7. Neurons can also be classified by the ________ that they send information:
  4. 8. Branched parts of a neuron that receive impulses from other neurons.
  5. 9. Single long fiber that carries impulses away from the cell body.
  6. 10. Spaces in between the nerve cells.
  7. 14. Controls and coordinates all the functions of the body.
  8. 15. Axon coated with insulation made of_________.
  9. 18. The pathway that an impulse follows to illicit a response to a stimulus.
  10. 20. A change in the environment.
Down
  1. 1. Send messages away from the cell body.
  2. 2. Involuntary
  3. 4. How the body reacts to a stimulus.
  4. 6. The “jumping across” the synapse is facilitated (helped) by chemicals called ______.
  5. 11. (or afferent) neurons: send information from sensory receptors (e.g., in skin, eyes, nose, tongue, ears) TOWARD the central nervous system.
  6. 12. Responsible for the coordination of muscles and is the center of balance
  7. 13. (or efferent) neurons: send information AWAY from the central nervous system to muscles or glands.
  8. 16. Is the scientific name for a Nerve Cell.
  9. 17. Voluntary
  10. 19. Contains cytoplasm and the nucleus. Impulses pass through here to the axon.