Exhalation
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Exhalation
Exhalation (pronounced: eks-huh-ley-shuhn) is the process of breathing out in the respiratory cycle of an organism.
Etymology
The term "exhalation" comes from the Latin word "exhalare", which means "to breathe out".
Process
During exhalation, the diaphragm relaxes, reducing the volume of the thoracic cavity, which increases the pressure inside the lungs, forcing air out. This process is also known as expiration in medical terminology.
Related Terms
- Inhalation: The process of breathing in, which is the opposite of exhalation.
- Respiration: The overall process of inhaling and exhaling air to facilitate gas exchange within the body.
- Breathing: The process of taking in oxygen and expelling carbon dioxide using the lungs.
- Diaphragm (anatomy): The primary muscle used in the process of inhalation and exhalation.
- Thoracic cavity: The chamber of the body of vertebrates that is protected by the thoracic wall (rib cage and associated skin, muscle, and fascia).
See Also
External links
- Medical encyclopedia article on Exhalation
- Wikipedia's article - Exhalation
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