Vital capacity is the maximum amount of air a person can exhale after a maximum inhalation, measuring the strength and health of respiratory function. It combines tidal volume, inspiratory reserve volume, and expiratory reserve volume.
The amount of air inhaled or exhaled during normal breathing.
The additional amount of air that can be inhaled with maximum effort after a normal inhalation.
The extra amount of air that can be forcibly exhaled after the end of a normal exhalation