Articularis genus muscle
Articularis genus muscle | |
---|---|
Details | |
Origin | femur |
Insertion | suprapatellar bursa |
Artery | femoral artery |
Nerve | femoral nerve |
Actions | Pulling the suprapatellar bursa during extension of the knee. |
Identifiers | |
Latin | Musculus articularis genus |
TA98 | A04.7.02.024 |
TA2 | 2625 |
FMA | 22437 |
Anatomical terms of muscle |
The articularis genus (subcrureus) is a small skeletal muscle located anteriorly on the thigh just above the knee.
Structure
It arises from the anterior surface of the lower part of the body of the femur,[1] deep to the vastus intermedius,[2] close to the knee and from the deep fibers of the vastus intermedius.[1]
Its insertion is on the synovial membrane of the knee-joint.[1]
Blood supply
It is supplied by the lateral femoral circumflex artery.[1]
Innervation
It is innervated by branches of the femoral nerve (L2-L4).[1]
Variation
Flat, wispy and highly variable,[3] sometimes consisting of several separate muscular bundles,[4] this muscle is without a distinct investing fascia and ranges 1.5–3 cm in width.[3]
It is usually distinct from the vastus intermedius, but occasionally blended with it.[4][needs update]
Function
Articularis genus pulls the suprapatellar bursa superiorly during extension of the knee,[2] and prevents impingement of the synovial membrane between the patella and the femur.[1]
References
This article incorporates text in the public domain from page 471 of the 20th edition of Gray's Anatomy (1918)
- ^ a b c d e f "Thigh to Foot Musculature". PT Central. Archived from the original on 15 July 2010. Retrieved 2010-08-17.
- ^ a b Agur, A. M. R.; Dalley, Arthur F. (2009). Grant's atlas of anatomy. Lippincott Williams & Wilkins. p. 414. Retrieved 2010-08-17.
- ^ a b B Reider; JL Marshall; B Koslin; B Ring; FG Girgis (1981). "The anterior aspect of the knee joint" (PDF). J Bone Joint Surg Am. 1981;63:351-356. Retrieved 2010-08-17.[permanent dead link]
- ^ a b Gray, Henry (1918). "The Muscles and Fasciæ of the Thigh". Yahoo Education. Archived from the original on 2009-12-22. Retrieved 2010-08-17.
External links
- Farshchian's Orthopedic Regenerative Series: The Knee; Articularis Genus (very clear illustration)