The minimum volume of air that remains in the lungs after a maximal expiration is termed the
A) tidal volume
B) functional residual capacity
C) residual volume
D) vital capacity
E) none of these, since no air remains in the lungs after maximal expiration

Question

Quizplus · Accepted Answer

The residual volume is the minimum amount of air that remains in the lungs after a maximal expiration. It is the volume of air that cannot be forced out of the lungs, as it is held there by the structure of the lungs and the chest wall. The other options are all volumes of air that are measured during breathing, but do not refer specifically to the amount of air that remains in the lungs after a maximal expiration.

The Minimum Volume of Air That Remains in the Lungs