The amount of air that moves into and out of the human lungs in each normal breath is called Tidal Volume.
Tidal Volume is an important measure in respiratory physiology. It typically represents the volume of air inhaled or exhaled in a single breath while at rest. In an average adult, the tidal volume is about 500 milliliters per breath. This volume can vary based on factors such as age, sex, body size, and fitness level. Understanding tidal volume is essential, as it helps in assessing lung function and respiratory health. It gives insight into how efficiently the body exchanges gases, which is crucial for maintaining oxygen levels and removing carbon dioxide.