7 out of 15
FRC is: (LQ)
|A||Dead space volume|
|B||Volume of air present after normal expiration|
|C||Volume of air present after forceful expiration|
Ans. B Volume of air present after normal expiration
FUNCTIONAL RESIDUAL CAPACITY (FRC Q) is defined as the volume of gas in the lungs at the end of a normal expiration. During this phase the lungs are partially inflated, so their elastic recoil exerts a force tending to empty the lungs.