Q.

During normal respiration without any effort the volume of air inspired or expired is called
 a) Tidal volume          b) Reserve volume          c) Residual volume              d) None of these

1 A
2 B
3 C
4 D

Ans.

(a) Tidal Volume (TV) is volume of air inspired or expired in relaxed position (500 mL). It consists of 150 mL of dead space volume and 350 mL of alveolar volume.