Inferior Subtendinous Bursa of Biceps Femoris Muscle
Bursa subtendinea inferior musculi bicipitis femoris
Read moreStructure
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 inferior subtendinous bursa of the biceps femoris muscle is a closed sac of synovial fluid located between the tendon of the biceps femoris muscle and the fibular collateral ligament.
The subtendinous bursa forms an inverted “J” shape around the anterior and anteromedial portions of the ligament. Its most distal margin is just proximal to the fibular head where the fibular collateral ligament inserts, and its more proximal aspect is at the superior edge of the anterior arm of the long head of the biceps femoris muscle. Mean anatomical dimensions reported suggest a width of 8.4 mm with a height of 18 mm (LaPrade and Hamilton, 1997).
Function
The inferior subtendinous bursa of the biceps femoris muscle reduces the friction of the biceps femoris tendon moving over the fibular collateral ligament.
References
LaPrade, R. F. and Hamilton, C. D. (1997) 'The fibular collateral ligament-biceps femoris bursa. An anatomic study', Am J Sports Med, 25(4), pp. 439-43.
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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.
