The average breathing rate is 12 breaths per minute. Tidal volume (TV) is the amount of air breathed in with each normal breath. The average tidal volume is 0.5 litres (500 ml). Minute ventilation ...

We assess the performance of the respiratory system by measuring ... breathing rate is approximately 12-15 breaths in a minute. Tidal volume (TV) is the amount of air inspired or expired in ...