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Definition of Thorax

Thorax: The area of the body located between the neck and the abdomen that contains the lungs, the heart and part of the aorta. The walls of the thorax are supported by the dorsal vertebrae, the ribs, and the sternum. The plural of thorax is thoraxes or thoraces. The thorax is also called the chest.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=5762
Last Editorial Review: 11/23/2003


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