What happens when intra-alveolar pressure becomes greater than atmospheric pressure
A)Air flows out of the lungs.
B)Air flows into the lungs.
C)There is no air flow.
D)The lung collapses.

Question

Quizplus · Accepted Answer

Whenever the intra-alveolar pressure becomes greater than atmospheric pressure, there will be a buildup of pressure within the lungs, which will lead to air flowing out of the lungs, causing expiration.

What Happens When Intra-Alveolar Pressure Becomes Greater Than Atmospheric Pressure