Bursitis involves inflammation or irritation of the bursa of a joint. The word bursitis comes from the word bursa and "itis" which means inflammation.
A bursa is a small, synovial fluid containing sac surrounded by a membrane. These sacs act as cushions for the joints. Located in areas that are subject to friction, as when a muscle or tendon is pulling around a corner or over a bone, their purpose is to cushion and lubricate the tissues.Bibliography item acr not found.,Bibliography item jhwhite not found.
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