Structure
Bursae are sac-like structures, with an inner synovial membrane, that produces a thin film of synovial fluid. They aid in reducing friction between moving tissues of the body, such as between tendon and bone, ligament and bone, tendons and ligaments, and between muscles.
Inflammation of the bursa is known as bursitis. If the inflammation is due to injury or strain, it is known as aseptic bursitis. However, if the inflammation is caused by infection, it is known as septic bursitis.
Related parts of the anatomy
Anatomical Relations
The anserine bursa is found between the pes anserinus and tibial collateral ligament. The pes anserinus refers to the conjoined tendons of three thigh muscles (sartorius, gracilis, semitendinosus) that insert onto the anteromedial surface of the proximal tibia, 5–6 cm below the knee.
Function
The anserine bursa reduces the friction between the pes anserinus and tibial collateral ligament.
List of Clinical Correlates
—Pes anserine bursitis
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Synovial Bursa
Synovial bursae provide a gliding surface and a cushion for soft tissues as they pass over skeletal prominences and are found over bone and under muscle, tendon, ligament, fascia, or skin.
