Respiratory system

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Across
  1. 2. where bronchi vessels and nerves enter lung
  2. 4. of CO2 transport bound to hemoglobin
  3. 6. cavity in skull that warms air and lightens skull
  4. 8. membrane surrounding lungs parietal and visceral
  5. 10. box containing vocal cords
  6. 12. air exhaled after max inhalation
  7. 13. moved in one normal breath about 500ml
  8. 15. air out of lungs
  9. 16. with C-shaped cartilage rings
  10. 20. shared by respiratory and digestive systems
  11. 21. structures that sweep mucus upward
  12. 27. organ of respiration right has 3 lobes left has 2
  13. 32. airway branch without cartilage
  14. 34. that vibrates to produce sound
  15. 35. that closes larynx during swallowing to prevent aspiration
  16. 37. secretion that traps dust and microbes
  17. 38. between ribs that help breathing
  18. 39. entry for air that warms moistens and filters
  19. 40. CO2 in blood
  20. 41. oxygen affects CO2 release
  21. 42. that reduces surface tension in alveoli prevents collapse
Down
  1. 1. form of CO2 transport in plasma HCO3
  2. 3. of gases from high to low concentration
  3. 5. in RBC that carries oxygen
  4. 7. between vocal cords
  5. 9. of gas exchange between body and environment
  6. 11. air into lungs
  7. 14. bound to oxygen bright red
  8. 17. inside nose lined with mucosa and cilia
  9. 18. sac where gas exchange occurs plural alveoli
  10. 19. of lungs to recoil back
  11. 22. muscle of breathing dome shaped
  12. 23. gas exhaled CO2
  13. 24. skin due to low oxygen
  14. 25. left in lungs after max exhalation prevents collapse
  15. 26. of air in and out of lungs also called breathing
  16. 28. oxygen in tissues
  17. 29. needed for cellular respiration O2
  18. 30. of trachea leading to each lung plural bronchi
  19. 31. pH affects oxygen release from hemoglobin
  20. 33. bones in nasal cavity that increase surface area also called turbinates
  21. 36. of lung expansion stretchability