The Brain and its Mysteries!

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Across
  1. 4. The "web-like" meninges.
  2. 5. The long term for REM.
  3. 8. the "internal clock" of the body.
  4. 9. The "glue" of the nervous system.
  5. 10. A network of nerves.
  6. 12. This material is watery and protects the spinal chord and the brain.
  7. 14. The little brain.
  8. 15. The spinal chord ----> The brain.
  9. 18. The thalamus, hypothalamus, and the epithalamus make up this.
  10. 19. This part of the nervous system is responsible for maintaining homeostasis.
  11. 20. Nerve tissue consisting of myelinated nerve fibers.
  12. 22. Metabolizes and stores energy for the cell.
  13. 24. Mass of nerve tissue, principally nerve cell bodies, outside the CNS.
  14. 25. This much of the heart's output is needed by the brain for normal function.
  15. 26. Fight or flight.
  16. 29. A basic nerve cell.
  17. 30. Four arteries which unite to form the circle of "_____"
Down
  1. 1. The inner layer of the three meninges.
  2. 2. There are "_____" cavities in the brain.
  3. 3. Controls skeletal muscle and movement.
  4. 6. The first one of these was said to be found in a fish.
  5. 7. Noncellular fatty covering of a nerve fiber.
  6. 10. Rest and digest.
  7. 11. The strongest of your body's senses.
  8. 13. The nerve endings that carry out actions.
  9. 16. A half of the cerebrum or cerebellum.
  10. 17. Regrowth, restoration or repair of a part.
  11. 21. The outer layer of the meninges.
  12. 23. The part of the nerve that carries impulses to the cell body.
  13. 27. Controls the tongue muscles.
  14. 28. There is only 1 pair of these spinal nerves.