Respiratory System

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Across
  1. 3. provides airway for respiration
  2. 5. throat; connects nasal cavity to larynx
  3. 8. concave, inferior surface of the lungs that rests on the diaphragm
  4. 12. air-filled sacs
  5. 15. period when air flows into the lungs
  6. 16. all other respiratory passageways
  7. 19. the pressure within the pleural cavity
Down
  1. 1. the pressure within the alveoli of the lungs
  2. 2. site of gas exchange
  3. 4. pulmonary ventilation
  4. 6. trap and destroy pathogens
  5. 7. area in the left lung for the heart
  6. 9. divides the nose into two sides
  7. 10. period when gases exit the lungs
  8. 11. 23 orders of branching air passageways in the lungs
  9. 13. voice box; switching mechanism to route air and food into the correct channels
  10. 14. lightens the skull, warm/moistens entering air
  11. 17. if the pressure in the lungs are ever equalized, the lungs will __
  12. 18. windpipe
  13. 20. paired; each suspended in own pleural cavity