The gas exchange system is responsible for getting oxygen into the blood and removing carbon dioxide as a person breathes. Breathing is also called 'ventilation' and is the movement of gases into and ...

Using accessory muscles implies that the forced expiratory volume in 1 second (FEV1) is decreased to 30% of normal, which is usually between 1.0 and 1.5 liters per second. In such cases, a sitting ...

Breathing is one of the body's most basic physiological processes, but it's not as automatic as we think. It's something we do without much thought, yet breathing properly is an active process that ...