The Respiratory System

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Across
  1. 2. the _____ pleura covers the lung
  2. 4. the _____ zone cleanses and humidifies incoming air
  3. 9. the area posterior to the nose and superior to the oral cavity
  4. 10. lung collapse due to air entering the pleural cavity
  5. 11. the movement of gases across the respiratory membrane
  6. 12. the right lung has three of these
  7. 13. phagocytes of dust microbes and debris found in the alveoli
  8. 14. the area posterior to the oral cavity
  9. 15. AKA the voice box
Down
  1. 1. space for the entry and exit of blood vessels to the lung
  2. 3. cartilage flap separating the air and food passages
  3. 5. the ______pleura lines the ribcage and diaphragm
  4. 6. _______ membrane allowing gas exchange between the alveoli and the capillaries
  5. 7. the area posterior to the epiglottis
  6. 8. the _____ zone is the site of gas exchange