Which Statement on Perfusion or Ventilation in Humans Is True

question 163

Multiple Choice

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.

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Horticulturalists

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