What is the name for the volume of air inhaled or exhaled in a normal breath?

The term for the volume of air inhaled or exhaled during a normal breath is known as Tidal Volume. This measures the amount of air that moves in and out of the lungs with each respiratory cycle when the body is at rest and is a fundamental aspect of understanding respiratory physiology.

In context, Inspiratory Reserve Volume refers to the additional air that can be inhaled after a normal inhalation, while Expiratory Reserve Volume is the extra air that can be forcibly exhaled after a normal exhalation. Vital Capacity is a broader measurement that combines the maximum amount of air expelled from the lungs after maximum inhalation and is thus not specific to a single breath cycle. Tidal Volume, therefore, specifically captures the essence of normal, everyday breathing patterns without additional effort.