<prompt> Functional residual capacity of lung is defined as:Volume expired after normal expirationVolume remaining after forced expirationERV RVTidal volume volume inspired forcefully  <response>: C i.e. ERV RV VOLUME Tidal volume 500 m1Q Is the air that moves into the lung T.V n,ith each normal inspiration or the volume of air that moves out of lung with each expiration Inspiratory 3300 m1Q The air inspired with a maximal reserve inspiratory effo in excess of tidal volume IRV volume Expiratory 1000 inlQ The air expelled with a maximal reserve expiratory effo in excess of tidal volume ERV volume Residual 1200 m1Q The amount of air remaining in the Volume RV lungs even after forced expiration CAPACITIES Inspiratory capacity I 3800 ml. Total amount of air that can be CTV IRV breathed in. Vital capacityVC 4800 ml. Maximal amount of air that can TV IRVERV be expelled out force fully after a IC ERV maximal deep inspiration Functional residual 2200 ml. It is the volume of air remaining capacity in the lung after normal FRCERVRV expiration after normal tidal expiration Total lung capacity 6000 ml. The amount of air present in the TLC 4.2-6 lung after a maximal inspiration. TVIRVERVRV UN This is the maximum volume to VC RV which the lungs can be expandedQ IC FRC 