The Nervous System

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Across
  1. 2. nervous system cranial nerves, spinal nerves, plexuses, and peripheral nerves throughout the body
  2. 4. the outermost membrane of the meninges
  3. 5. the uppermost portion of the brainstem
  4. 7. part of the brain that plays a major role in maintaining levels of awareness and consciousness
  5. 10. contains neurons that control body temperature, sleep, appetite, sexual desire, and emotions
  6. 12. connects the spinal cord with the rest of the brain
  7. 14. nervous system brain and spinal cord
  8. 15. the branching fibers of the neuron
Down
  1. 1. cell that forms the myelin sheath in the CNS
  2. 3. the third layer of the meninges, closest to the brain and spinal cord
  3. 6. cell that is star-like in appearance and transports water and salts between capillaries and neurons
  4. 8. a large network of nerves in the PNS; networks of intersecting blood vessels (vascular) and lymphatic vessels
  5. 9. (motor) nerves travel from the spinal cord and brain to muscles of the body, telling them how to respond
  6. 11. (sensory) nerves that carry messages related to changes in the environment toward the spinal cord and brain
  7. 13. "bridge;" contains nerve fiber tracts that connect the cerebellum and cerebrum with the rest of the brain