Respiratory System Structures

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Across
  1. 4. region behind the mouth and soft palate
  2. 5. extension of the soft palate
  3. 7. first structure of respiratory tract; warms, cleanses, moistens air
  4. 8. rigid tube with C-shaped cartilage rings connecting larynx to bronchi
  5. 10. subdivisions of lungs (3 right, 2 left)
  6. 11. organ of voice production; prevents choking
  7. 12. muscular funnel receiving air, food, and drink
  8. 16. trunk between neck and abdomen; lungs sit in this cavity
  9. 18. gas exchange process transporting oxygen and carbon dioxide
  10. 19. passageways for air entering the nose (plural of naris)
  11. 20. membrane covering lungs and lining thoracic cavity
  12. 21. air sacs where gas exchange occurs
  13. 23. region of pharynx below the epiglottis
  14. 24. lining of the nasal cavity that secretes mucus
  15. 25. lymphoid tissue on either side of the throat
  16. 30. pertaining to the lungs and blood supply
Down
  1. 1. primary airways branching from trachea
  2. 2. cartilage flap that closes over larynx during swallowing
  3. 3. smallest airways that control airflow and lead to alveoli
  4. 6. passageway inside the nasal cavity
  5. 7. region of pharynx behind the nose
  6. 9. branching airway system that conducts air into lung lobes
  7. 13. muscle partition below lungs aiding inhalation and exhalation
  8. 14. produce sound by vibrating when air moves past
  9. 15. movement of air into and out of the lungs
  10. 17. lymphoid tissue located midline at back of throat
  11. 22. main organs of respiration; home of gas exchange
  12. 26. cartilage wall that divides the nasal cavity into left and right chambers
  13. 27. cavity or hollow space in a bone near the nose
  14. 28. opening from oropharynx into larynx
  15. 29. bony ridges on lateral walls of nasal cavity