<prompt> Which of the following statement is true about Functional residual capacity:Tidal volume volume expired forcefullyVolume remaining after forced expirationTidal volume volume inspired forcefullyVolume remaining after normal expiration  <response>: Ans. d Volume remaining after normal expirationRef.: Ganong25th ed. 1629LUNG VOLUME Tidal volume T.V N 500 mlAir that moves in or out of the lung with each normal inspiration or expiration Inspiratory reserve volume IRV N 3300 mlThe air inspired with a maximal inspiratory effort in excess of tidal volume Expiratory reserve volume ERV N 1000 mlThe air expelled with a maximal expiratory effort t in excess of tidal volume Residual volume RV N 1200 mlThe amount of air remaining in the lungs even after forced expirationLUNG CAPACITIES Inspiratory capacity l-C TV IRV N 3800 mlTotal amount of air that can be breathed in. Vital capacity; VC TV IRVERV N 4800 mlMaximum amount of air that can be expelled out force fully after a maximal deep inspiration Functional residual capacity FRC ERV RV N 2200 mlIt is the volume of air remaining in the lung after normal expiration after normal tidal expiration Total lung capacity TLCTV IRV ERVRV N 6000 ml. 4.2-6 litThe amount of air present in the lung after a maximal inspiration. This is the maximum volume to which the lungs can be expanded. 