Which statement on perfusion or ventilation in humans is true?
A) Perfusion delivers O2 to the exchange surface.
B) Perfusion carries away CO2 that has diffused across the exchange surface.
C) Ventilation delivers O2 to the environmental side of the exchange surface.
D) During exhalation, alveolar and pleural cavity pressure rise and become positive.
E) Ventilation carries away O2 that has diffused across the exchange surface.
Correct Answer:
Verified
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