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Lungs - Anatomy & Physiology (view source)
Revision as of 14:04, 12 August 2008
, 14:04, 12 August 2008no edit summary
==Introduction==
==Introduction==
[[Image:Doglunginflated.jpg|right|thumb|300px|©RVC 2008]]
The lungs are the site for gaseous exchange, and are situated within the thoracic cavity. They occupy approximatley 5% of the body volume in mammals when relaxed, but generally have no fixed size or shape since their volume is constantly changing with the processes of inspiration and expiration.
The lungs are the site for gaseous exchange, and are situated within the thoracic cavity. They occupy approximatley 5% of the body volume in mammals when relaxed, but generally have no fixed size or shape since their volume is constantly changing with the processes of inspiration and expiration.
==Structure==
==Structure==
*The left and right lungs lie within their pleural sac and are only attached by their roots, to the [[Mediastinum - Anatomy & Physiology|mediastinum]], so they are
*The left and right lungs lie within their pleural sac and are only attached by their roots, to the [[Mediastinum - Anatomy & Physiology|mediastinum]], so they are