YMAA Crossword!

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Across
  1. 1. Fluid that fills the ventricles (abbreviation).
  2. 3. Electrical brain activity between 2 and 4 Hz.
  3. 7. Electrical brain activity recorded with scalp or brain electrodes (abbreviation).
  4. 9. Opposite of "yes".
  5. 11. A short written letter.
  6. 12. Short for "mother".
  7. 13. Neurotransmitter in brain, spinal cord, and peripheral nervous system (abbreviation).
  8. 15. Supportive cells of the nervous system; "glue".
  9. 17. Composed of the brain and spinal cord.
  10. 23. The part of the cell containing chromosomes.
  11. 24. Outermost layer of meninges.
  12. 25. The second cranial nerve.
  13. 26. The sense of hearing.
  14. 27. Opposite of "Yes".
  15. 29. The middle layer of the meninges.
  16. 31. Junction between two neurons.
  17. 33. Photoreceptor that is used for color vision.
  18. 34. Organ for vision.
Down
  1. 2. Cell body.
  2. 4. The fifth cranial nerve.
  3. 5. Part of neuron that takes information AWAY from the cell body.
  4. 6. Contains photoreceptors; on the inner posterior portion of eye.
  5. 8. Photoreceptor that is not used for color vision.
  6. 10. The first cranial nerve.
  7. 14. Abbreviation for 17 Across.
  8. 16. "Inside the mouth".
  9. 18. Nerve cell.
  10. 19. Period of sleep when dreams occur (abbreviation).
  11. 20. Opposite of "off".
  12. 21. Necessary for hearing.
  13. 22. Fat-like substance that surrounds some axons.
  14. 28. Neurotransmitter lacking in patients with Parkinson's disease.
  15. 30. Part of neuron that takes information TO the cell body.
  16. 32. IN the brain, it is the outermost layer of the gray matter.