Q.2:- State the volume of air remaining in the lungs after a normal breathing.
Functional Residual Capacity (FRC): The volume of air which remains in the lungs after a normal expiration is called Functional Residual Capacity. FRC = ERV + RV.
ERV=1000 to 1100 ml
RV = 1100 to 1200 ml
So, FRC = 2100 to 2300 ml