When we are relaxed, only a small amount of air moves in and out with each breath. This is called
A) static volume.
B) tidal volume.
C) inspiratory reserve volume.
D) expiratory reserve volume.
E) residual volume.

Question

Quizplus · Accepted Answer

Tidal volume is the amount of air that moves in and out of the lungs during normal, relaxed breathing. Static volume, inspiratory reserve volume, expiratory reserve volume, and residual volume are all measurements of lung capacity, but they do not specifically refer to normal, relaxed breathing.

When We Are Relaxed, Only a Small Amount of Air