a sac containing synovial fluid that occurs at sites of friction, as between a tendon and a bone over which it plays, or subcutaneously over a bony prominence. Terminologia Anatomica lists the following types: subcutaneous bursa, bursa subcutanea [TA]; submuscular bursa, bursa submuscularis [TA]; subfascial bursa, bursa subfascialis [TA]; and subtendinous bursa, bursa subtendinea [TA].
Synonym(s): bursa synovialisTA, bursa mucosa
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Examples: glitazone, GI cocktail, etc.