Mr.Huff and Puff exhales normally; then,using forced expiration,he exhales as much air as possible.The volume of air still remaining in his lungs is called
A)expiratory reserve volume.
B)tidal volume.
C)inspiratory reserve volume.
D)vital capacity.
E)residual volume.

Question

Quizplus · Accepted Answer

The volume of air still remaining in Mr. Huff and Puff's lungs after forced expiration is residual volume. This is the amount of air that cannot be expelled from the lungs, even with maximum effort, and is necessary to keep the lungs inflated and prevent collapse.

MrHuff and Puff Exhales Normally; Then,using Forced Expiration,he Exhales as Much