Supra-acromial bursa

Supra-acromial bursa is a bursa located in the shoulder region. It is situated above the acromion, a bony projection off the scapula. The supra-acromial bursa plays a crucial role in the smooth movement of the shoulder joint.

Etymology

The term "supra-acromial bursa" is derived from Latin and Greek roots. "Supra" is a Latin term meaning "above," "acromion" is derived from the Greek words "akros" (highest) and "omos" (shoulder), and "bursa" is a Latin term meaning "purse." Thus, the term can be translated as "the purse above the highest shoulder."

Anatomy

The supra-acromial bursa is a thin, slippery, sac-like structure filled with synovial fluid. It is located between the acromion and the rotator cuff tendons, specifically the supraspinatus and deltoid. The bursa serves to reduce friction between the acromion and the rotator cuff tendons during shoulder movements.

Clinical significance

Inflammation of the supra-acromial bursa, known as bursitis, can cause significant shoulder pain and restricted movement. This condition is often associated with repetitive overhead activities, trauma, or conditions such as rheumatoid arthritis. Treatment typically involves rest, physical therapy, and in some cases, corticosteroid injections or surgery.

Related terms

• Bursa: A fluid-filled sac that reduces friction between tissues of the body.
• Acromion: A bony projection off the scapula.
• Bursitis: Inflammation of a bursa, often causing pain and restricted movement.

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Supra-acromial bursa

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