Definition of Bursitis

Reviewed on 3/29/2021

Bursitis: Bursitis is inflammation of a bursa. A bursa is a tiny fluid-filled sac that functions as a gliding surface to reduce friction between tissues of the body. The major bursae are located adjacent to the tendons near the large joints, such as the shoulders, elbows, hips, and knees.


The term arthritis refers to stiffness in the joints. See Answer

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