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Card 7 / 14:
A smoker develops damage to several alveoli that then can no longer function. How does this affect gas exchange?
The damaged alveoli will have insufficient ventilation, causing the partial pressure of oxygen in the alveoli to decrease. As a result, the pulmonary capillaries serving these alveoli will constrict, redirecting blood flow to other alveoli that are receiving sufficient ventilation.
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