Unit 12 Crossword- For terms that are more than one word there are no spaces between words.

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Across
  1. 3. carries blood between the heart and the lungs
  2. 5. binds with oxygen in red blood cells
  3. 6. cushions the CNS and helps supply it with nutrients, hormones, and white blood cells
  4. 8. carries blood between the heart and the rest of the body
  5. 9. dichotomy between fight and flight in the autonomic nervous system
  6. 10. relay point between a neuron and a receiving cell
  7. 11. abnormally low amount of red blood cells or hemoglobin
  8. 12. coordinates body movement
  9. 13. fluid is pumped through open ended tubes
  10. 17. serves as input center for sensory data going to the cerebrum and output center for motor responses
  11. 18. smallest blood vessels that carry deoxygenated blood back to the heart
  12. 19. voice box
  13. 20. pumping phase if the heart
  14. 21. 3-5% of this is dissolved oxygen
  15. 22. sends sensory data to higher brain centers
  16. 23. controls pituitary gland and acts as a biological clock
Down
  1. 1. 21% of this is oxygen
  2. 2. facilitates exchange of material in the body
  3. 4. largest blood vessels that carry blood away from the heart
  4. 6. blood stays within a set of tubes and is distinct from interstitial fluids
  5. 7. muscle under the lungs that expands and contracts
  6. 14. air is forced into lungs
  7. 15. air moves passively into lungs after air pressure drops
  8. 16. passes data between the spinal cord and forebrain