Subacromial bursa

Looks like

A slippery sac between the roof of the shoulder and the cuff tendons beneath it.

What it does

Lets the tendons slide under the bony roof as the arm rises.

Keeping it well

Avoid repeated overhead work while sore; this is what is inflamed in impingement.

Its parts

• Subacromial bursa
• Subcutaneous acromial bursa
• Subdeltoid bursa

Related conditions

• Bursitis
• Frozen shoulder (adhesive capsulitis)
• Gout
• Haemophilia & bleeding disorders
• Lyme disease
• Marfan syndrome & connective tissue disorders
• Osteoarthritis
• Polymyalgia rheumatica
• Psoriatic arthritis
• Rheumatic fever & rheumatic heart disease
• Rheumatoid arthritis
• Shoulder dislocation
• Systemic lupus erythematosus
• Temporomandibular joint disorder