问题
单项选择题
Which phrase is used to describe the volume of air inspired and expired with a normal breath ?()
A.Total lung capacity.
B.Forced vital capacity.
C.Tidal volume.
D.Residual volume.
答案
参考答案:C
解析:
Tidal volume refers to the volume of air inspired and expired with a normal breath. Total lung capacity is the maximal amount of air the lungs and respiratory passages can hold after a forced inspiration. Forced vital capacity is vital capacity performed with a maximally forced expiration. Residual volume is the maximal amount of air left in the lung after a maximal expiration.