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Definition of Pleural space

Pleural space: The tiny area between the two layers of the pleura (the thin covering that protects and cushions the lungs) between the lungs and chest cavity. The pleural space is normally filled with a small amount of fluid.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=4947
Last Editorial Review: 10/30/2013

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