Respiratory Terms

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Across
  1. 4. Small passages branching from the bronchi
  2. 5. The nostrils through which air enters
  3. 6. The structure that guards the opening to the windpipe
  4. 8. The windpipe
  5. 10. Air-filled cavities in the skull
  6. 11. A condition caused by lung infection
  7. 14. Small hair-like structures that help filter air in the respiratory system
  8. 15. The tube connecting the pharynx and lungs
  9. 16. The topmost part of the lungs
  10. 18. Tiny air sacs where gas exchange occurs
  11. 20. The membrane surrounding the lungs
  12. 21. The part of the throat that directs food and air
Down
  1. 1. The space between ribs
  2. 2. The feeling of needing air or the act of breathing in
  3. 3. The space between the vocal cords
  4. 7. The voice box
  5. 9. The process of taking in oxygen and releasing carbon dioxide
  6. 12. The breathing process involving the intake of air
  7. 13. The lower part of the lungs
  8. 17. The muscular structure that assists in breathing
  9. 19. The action of breathing out