There are approximately between 7 to 12 bursae (fluid filled sac) around the shoulder joint helping to decrease friction between shoulder joint structures during normal movements.
The subacromial/subdeltoid, subcoracoid and subscapular bursa commonly referred to in the literature, could be described in lay man's terms as the "oil in the engine". The subacromial bursa then facilitates the smooth movement of the rotator cuff under the acromion and is inneravted by the superior articular branch of...
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