Which term describes the amount of air inhaled or exhaled during a normal breath?

The amount of air inhaled or exhaled during a normal breath is referred to as tidal volume. It represents a typical pulmonary function during regular, resting breathing and is measured in milliliters. This term is essential for understanding lung function and respiratory health because it indicates the volume of air that moves in and out of the lungs with each breath. Other terms describe different aspects of lung capacity, but tidal volume specifically pertains to the volume of a single, normal breath, making it the most accurate choice in this context.