Which term refers to the exchange of oxygen and carbon dioxide?

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Multiple Choice

Which term refers to the exchange of oxygen and carbon dioxide?

Explanation:
Respiration is the exchange of oxygen and carbon dioxide between the air in the lungs, the blood, and the tissues. It covers external respiration (alveolar gas exchange with blood) and internal respiration (gas exchange between blood and tissues). Ventilation is simply the movement of air in and out of the lungs, oxygenation refers to how much oxygen is in the blood, and perfusion is the blood flow delivering that gas to tissues. So respiration best describes the actual gas exchange process.

Respiration is the exchange of oxygen and carbon dioxide between the air in the lungs, the blood, and the tissues. It covers external respiration (alveolar gas exchange with blood) and internal respiration (gas exchange between blood and tissues). Ventilation is simply the movement of air in and out of the lungs, oxygenation refers to how much oxygen is in the blood, and perfusion is the blood flow delivering that gas to tissues. So respiration best describes the actual gas exchange process.

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