Question

Total volume of air accommodated in the lungs at the end of a forced inspiration is called __________.

• A. total lung capacity
• B. vital capacity
• C. functional residual capacity
• D. none of the above

Answer 1

The correct option is A total lung capacity

Total Lung Capacity (TLC) is the total volume of air accommodated in the lungs at the end of a forced inspiration.
This includes Residual Volume, Expiratory Reserve Volume, Tidal Volume and Inspiratory Reserve Volume.

Tidal volume (TV) is the amount of air that moves in or out of the lungs with each respiratory cycle.

Residual volume (RV) is the volume of air remaining in the lungs after maximum forceful expiration. In other words, it is the volume of air that cannot be expelled, thus causing the alveoli to remain open at all times. Values for residual volume are 1 to 1.2 L,

Functional Residual Capacity (FRC) is the volume of air that will remain in the lungs after a normal expiration.

Vital Capacity (VC) is the maximum volume of air a person can breathe in after a forced expiration.