Multiple Choice
Which of the following does not occur during expiration when a person is breathing quietly?
A) the size of the thoracic cavity is reduced.
B) the intra-alveolar pressure becomes greater than atmospheric pressure.
C) air flows out of the lungs.
D) the expiratory muscles contract.
E) intrapleural pressure is less than intra-alveolar pressure.
Correct Answer:
Verified
Correct Answer:
Verified
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