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Questions and Answers
During strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation, what happens to the diffusing capacity for O2?
During strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation, what happens to the diffusing capacity for O2?
- It stays the same
- It increases (correct)
- It fluctuates
- It decreases
What causes the increase in diffusing capacity for O2 during strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation?
What causes the increase in diffusing capacity for O2 during strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation?
- A decrease in alveolar ventilation
- Opening up dormant pulmonary capillaries (correct)
- A decrease in surface area
- A decrease in pulmonary blood flow
What is the purpose of increasing the diffusing capacity for O2 during strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation?
What is the purpose of increasing the diffusing capacity for O2 during strenuous exercise or other conditions that increase the pulmonary blood flow and alveolar ventilation?
- To decrease the surface area of the blood into which O2 can diffuse
- To decrease the amount of O2 that can diffuse
- To increase the surface area of the blood into which O2 can diffuse (correct)
- To decrease the pulmonary blood flow
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