14. Alveolar ventilation changes alveolar gases & 15. Local matching of ventilation and perfusion

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4 Terms

1
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As alveolar ventilation increases _.

Alveolar O2 increases and CO2 decreases

2
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What is normal alveolar ventilation value?

4.2 L/min

3
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Gas exchange is most effective when blood flow through _ is directed, by _, toward alveoli that are being _.

pulmonary capillaries, the pulmonary arteries constricting areas that are not well ventilated, ventilated

4
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What is the result of low alveolar PCO2?

bronchodilation