Respiratory System

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Across
  1. 2. capacity Max volume of air that can be exchanged by the lungs
  2. 5. The _______ flattens as it contracts
  3. 7. Volume of air forcibly exhaled after normal tidal exhalation
  4. 9. The exchange of O2 and CO2 in blood and tissues
  5. 10. CO2 bonded to Hb
  6. 11. At a constant temperature, the pressure of a gas is inversely proportional to its volume
  7. 13. Surfactant keeps the alveoli from collapsing by decreasing _________
  8. 14. Volume of air moved in and out of lungs during normal quiet breathing
  9. 15. Blocked blood circulation can cause _____ hypoxia
Down
  1. 1. Most CO2 is transported in the blood as _____ ions
  2. 3. 760 mm Hg at sea level
  3. 4. Oxygen combined with hemoglobin
  4. 6. The _____ lung has 3 lobes
  5. 8. Alveolar ______ transfer dust particles to the surface of the lung
  6. 11. An increase in ___ decreases the affinity of Hb for O2
  7. 12. The smallest bronchioles are the _____ bronchioles
  8. 13. Type II alveolar cells produce _____