Which of the following statements is true? Select one:
a. As thoracic volume increases, alveolar pressure (Palv) increases.
b. In expiration, the thoracic volume increases.
c. Constriction of bronchioles assists breathing.
d. As alveolar volume increases, alveolar pressure (Palv) decreases.
e. Pressure is directly proportional to volume.
Correct answer is d. As alveolar volume increases, alveolar pressure (Palv) decreases.
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