If a student inhales as deeply as possible and then blows the air out until he cannot exhale any more, the amount of air that he expelled is his
A) tidal volume.
B) inspiratory reserve volume.
C) expiratory reserve volume.
D) minimal volume.
E) vital capacity.

Question

Quizplus · Accepted Answer

The amount of air that is expelled after inhaling as deeply as possible and then exhaling forcefully is called the vital capacity. This includes the tidal volume (the amount of air normally breathed in and out during normal breathing), the inspiratory reserve volume (the amount of air that can be forcefully inhaled after a normal inhale), and the expiratory reserve volume (the amount of air that can be forcefully exhaled after a normal exhale). The minimal volume is the amount of air that always remains in the lungs and cannot be exhaled, even with forceful exhalation.

If a Student Inhales as Deeply as Possible and Then