Medical Definition of Bursa

Bursa: A closed, fluid-filled sac that functions as a gliding surface to reduce friction between tissues of the body. When a bursa becomes inflamed, the condition is known as bursitis.

Quick GuideRheumatoid Arthritis (RA) Symptoms & Treatment

Rheumatoid Arthritis (RA) Symptoms & Treatment

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Last Editorial Review: 5/13/2016

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