Synovial bursa

Based on location, there are three types of bursa: subcutaneous, submuscular and subtendinous. A subcutaneous bursa is located between the skin and an underlying bone. It allows skin to move smoothly over the bone. Examples include the prepatellar bursa located over the kneecap and the olecranon bursa at the tip of the elbow. A submuscular bursa is found between a muscle and an underlying bone, or between adjacent muscles. These prevent rubbing of the muscle during movements. A large submuscular bursa, the trochanteric bursa, is found at the lateral hip, between the greater trochanter of the femur and the overlying gluteus maximus muscle. A subtendinous bursa is found between a tendon and a bone. Examples include the subacromial bursa that protects the tendon of shoulder muscle as it passes under the acromion of the scapula, and the suprapatellar bursa that separates the tendon of the large anterior thigh muscle from the distal femur just above the knee.[1]

An adventitious bursa is a non-native bursa. When any surface of the body is subjected to repeated stress, an adventitious bursa develops under it. Examples are Students' elbow and bunion.

Infection or irritation of a bursa leads to bursitis (inflammation of a bursa). The general term for disease of bursae is "bursopathy."

• Bursa of Fabricius (a lymphatic organ in birds)
• Bursectomy
• Knee bursae
• Shoulder joint#Bursae

Wikimedia Commons has media related to Synovial bursae.

• Hirji, Zameer; Hunjun, Jaspal S; Choudur, Hema N (2 May 2011). "Imaging of the Bursae". Journal of Clinical Imaging Science. 1: 22. doi:10.4103/2156-7514.80374. PMC 3177464. PMID 21966619.
• Bursa
• Diagram of elbow with olecranon bursa

 This article incorporates text from a free content work. Licensed under CC BY 4.0. Text taken from Anatomy and Physiology​, J. Gordon Betts et al, Openstax.