Respiratory

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Across
  1. 4. Windpipe that connects larynx to bronchi
  2. 6. Disease where alveoli lose elasticity
  3. 7. Process of removing air from the lungs
  4. 11. Shared passageway for air and food
  5. 12. Voice box located above the trachea
  6. 14. Process of breathing air into the lungs
  7. 15. Protein in red blood cells that carries oxygen
  8. 17. Waste gas removed from the body
  9. 19. Filters, warms, and moistens incoming air
  10. 20. Chest cavity that houses lungs
  11. 21. Condition causing airway narrowing and wheezing
  12. 26. Tiny blood vessels surrounding alveoli
  13. 27. Hair-like structures that trap debris
Down
  1. 1. Smaller airway branches inside the lungs
  2. 2. Bacterial lung infection spread through air
  3. 3. Infection causing fluid in alveoli
  4. 5. Exchange of gases between body and environment
  5. 8. Flap that prevents food from entering airway
  6. 9. Gas required for cellular respiration
  7. 10. Double membrane surrounding the lungs
  8. 13. Muscle that contracts to allow inhalation
  9. 16. Inflammation of the bronchial tubes
  10. 18. Movement of air in and out of lungs
  11. 22. Sticky substance that traps particles and pathogens
  12. 23. Movement of gases from high to low concentration
  13. 24. Tiny air sacs where gas exchange occurs
  14. 25. Two main branches that enter the lungs