The air remaining in the lung after a maximal expiration is the:
A)residual volume
B)vital capacity
C)tidal volume
D)tidal wave
E)vital volume

Question

Quizplus · Accepted Answer

The residual volume is the amount of air that remains in the lungs after a maximal expiration. This air cannot be voluntarily expelled and is important for maintaining lung function and preventing collapse of the airways. The other options refer to either the maximum amount of air that can be inhaled/exhaled (vital capacity), the normal amount of air inhaled/exhaled in a single breath (tidal volume), or non-existent terms (tidal wave and vital volume).

The Air Remaining in the Lung After a Maximal Expiration