Diaphragm muscle
Diaphragm Muscle
The Diaphragm Muscle (pronounced: die-a-fram) is a dome-shaped, muscular and fibrous structure that separates the thoracic cavity from the abdominal cavity. It plays a crucial role in respiration, as it contracts and relaxes during breathing.
Etymology
The term "diaphragm" is derived from the Greek word diáphragma, meaning 'partition'.
Function
The primary function of the diaphragm muscle is to facilitate respiration. When it contracts, it increases the volume of the thoracic cavity, reducing the pressure inside and drawing air into the lungs. When it relaxes, it decreases the volume of the thoracic cavity, increasing the pressure and forcing air out of the lungs.
Related Terms
- Thoracic Cavity: The upper part of the trunk, which is separated from the lower abdomen by the diaphragm muscle.
- Abdominal Cavity: The largest cavity in the body, located below the diaphragm muscle.
- Respiration: The process of inhaling and exhaling air to facilitate the exchange of oxygen and carbon dioxide.
See Also
External links
- Medical encyclopedia article on Diaphragm muscle
- Wikipedia's article - Diaphragm muscle
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