Define tidal volume?

Tidal volume refers to the amount of air that is inhaled and exhaled during normal breathing, without any extra effort. It is typically measured in milliliters and is an important parameter in assessing lung function.

Tidal volume (TV) is the volume of air that moves in and out of the lungs with each breath. It is measured in milliliters (mL) and is typically between 500 and 1,000 mL in healthy adults. TV is regulated by the respiratory center in the brainstem, which sends signals to the diaphragm and intercostal muscles to control the rate and depth of breathing.