As the volume of the thoracic cavity increases due to the contraction of the muscles of inspiration, what occurs in the lungs and alveoli?

A. Lung and alveolar volumes decrease and intrapulmonary pressure decreases.
B. Lung and alveolar volumes decrease and intrapulmonary pressure increases.
C. Lung and alveolar volumes increase and intrapulmonary pressure decreases.
D. Lung and alveolar volumes increase and intrapulmonary pressure increases.


Answer: C

Anatomy & Physiology

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