The maximum volume of air that can be pushed into and out of the lungs during forceful inhalations and exhalations is known as vital capacity.
The vital capacity can be defined as the total amount of air that can be inhaled and exhaled in a single breath. Forced inspiration and forced expiration allow for the measurement of the reserve volumes.
The lungs have a vast air capacity, yet they are not typically fully inflated. The four different types of lung volume measurements are tidal volume, expiratory reserve volume, inspiratory reserve volume, and residual volume. The total lung capacity is the sum of these. A respiratory cycle’s maximum amount of air that may be inhaled or exhaled is measured by the vital capacity (VC). It is the result of adding the tidal volume, the inspiratory reserve volume, and the expiratory reserve volume (4.8 volumes per liter).
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