respiratory system

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Across
  1. 1. part of throat where epiglottis is
  2. 5. a spasm in the esophagus
  3. 8. has to do with the mouth
  4. 9. has to do with the heart
  5. 10. where your vocal cords are
  6. 11. metric quarts
  7. 13. these are mucous and dirt in the nose
  8. 14. big sections of the lungs
  9. 16. a muscle that helps us breathe
  10. 19. main organ that holds oxygen and carbon dioxide
  11. 20. these carry oxygen in the blood
Down
  1. 2. has to do with the nose
  2. 3. a piece of cartilage that keeps food out
  3. 4. breathing in and out
  4. 5. main part of cardiovascular system
  5. 6. tiny blood vessels
  6. 7. this lines the nose
  7. 8. humans breathe this in
  8. 12. what food goes down
  9. 15. humans breathe this out
  10. 17. tiny sacs in the lungs
  11. 18. has to do with the lungs