Articularis genus muscle explained
| Articularis genus muscle |
| Latin: | musculus articularis genus |
| Origin: | Femur |
| Insertion: | Suprapatellar bursa |
| Blood: | Femoral artery |
| Nerve: | Femoral nerve |
| Action: | Pulling the suprapatellar bursa during extension of the knee |
The articularis genus (also known as the subcrureus muscle[1]) 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,[2] deep to the vastus intermedius,[3] close to the knee and from the deep fibers of the vastus intermedius.
Its insertion is on the synovial membrane of the knee-joint.
Blood supply
It is supplied by the lateral femoral circumflex artery.
Innervation
It is innervated by branches of the femoral nerve (L2-L4).
Variation
Flat, wispy and highly variable,[4] sometimes consisting of several separate muscular bundles, this muscle is without a distinct investing fascia and ranges 1.5–3 cm in width.
It is usually distinct from the vastus intermedius, but occasionally blended with it.[5]
Function
Articularis genus pulls the suprapatellar bursa superiorly during extension of the knee, and prevents impingement of the synovial membrane between the patella and the femur.
External links
- Farshchian's Orthopedic Regenerative Series: The Knee; Articularis Genus (very clear illustration)
Notes and References
- Web site: Toldt. C.. Dalla. R. A.. Paul. E.. 1903. 606. Adductor magnus muscle. Obturator externus muscle. Subcrureus muscle. 23 February 2021. Creighton University. 10504/17086.
- Web site: Thigh to Foot Musculature . PT Central . 2010-08-17 . https://web.archive.org/web/20100715211225/http://www.ptcentral.com/muscles/musclelegs.html . 15 July 2010 . dead .
- Book: Grant's atlas of anatomy . Agur, A. M. R. . Dalley, Arthur F. . Lippincott Williams & Wilkins . 2009 . 2010-08-17 . 414. 9780781770552 .
- The anterior aspect of the knee joint . B Reider . JL Marshall . B Koslin . B Ring . FG Girgis . The Journal of Bone and Joint Surgery. American Volume . J Bone Joint Surg Am. 1981;63:351-356. . 1981 . 63 . 3 . 351–6 . 10.2106/00004623-198163030-00004 . 7204430 . 2010-08-17 .
- Web site: Gray, Henry . The Muscles and Fasciæ of the Thigh . Yahoo Education . 1918 . 2010-08-17 . https://web.archive.org/web/20091222220916/http://education.yahoo.com/reference/gray/subjects/subject/128#p471 . 2009-12-22 . dead .
