MARK EACH ONE AS CORRECT OR INCORRECT (and please give explanations) Select all

Question

MARK EACH ONE AS CORRECT OR INCORRECT (and please give explanations)

Select all of the following that are correct regarding gas volumes.

1.) alveolar gas volumes are proportional to the difference between alveolar pressure and upper airway pressure

2.) alveolar gas volumes are proportional to the difference between alveolar pressure and intrapleural pressure

3.) FRC is determined by the inward pull of the lung and the inward pull of the chest wall

4.) TLC is limited by the inward pull of the lung and the inward pull of the chest wall

Explanation / Answer

1.) alveolar gas volumes are proportional to the difference between alveolar pressure and upper airway pressure ----> FALSE

2.) alveolar gas volumes are proportional to the difference between alveolar pressure and intrapleural pressure -------------------> TRUE

3.) FRC is determined by the inward pull of the lung and the inward pull of the chest wall -------> FALSE (FRC is determined by the inward pull of the lung and the outward pull of the chest wall).

4.) TLC is limited by the inward pull of the lung and the inward pull of the chest wall ---------> TRUE (Total lung capacity is limited by the inward pull of the lung and the inward pull of the chest wall)

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