The diaphragm is the primary muscle used in respiration, which is the process of breathing. This dome-shaped muscle is located just below the lungs and heart. It contracts continually as you breathe ...

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 ...

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 ...

The elastic recoil of the lungs provides the necessary acoustic energy, while the diaphragm, intercostal muscles, and abdominal muscles manipulate how that air is released through the larynx, a ...

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 ...

Q: I had a sudden, twisting jolt when I jumped off a ladder and within a day my chest started to really hurt when I moved or breathed. It become incredibly painful when I coughed or sneezed. Even ...