Trip Van-Der-Bilt from Gossip Girl is played by Aaron Tveit - click there for more information on this actor.
Lung volumes and lung capacities refer to the volume of air associated with different phases of the respiratory cycle. Lung volumes are directly measured. Lung capacities are inferred from lung volumes.
Vital Capacity (VC): Vital capacity is the total usable volume of the lungs which is under voluntary control. This value does not include the entire lung volume as it is not possible to breath all of the air out of the lungs. Total Lung Capacity (TLC): The residual volume (air you cannot expire) + vital capacity (total volume available for use) = total lung capacity.