Articularis genus muscle | |
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![]() Anterior surface of right femur. Origin of articularis genus labelled at bottom middle of image. | |
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 (also known as the subcrureus muscle [1]) is a small skeletal muscle located anteriorly on the thigh just above the knee.
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. [2]
Its insertion is on the synovial membrane of the knee-joint. [2]
It is supplied by the lateral femoral circumflex artery. [2]
It is innervated by branches of the femoral nerve (L2-L4). [2]
Flat, wispy and highly variable, [4] sometimes consisting of several separate muscular bundles, [5] this muscle is without a distinct investing fascia and ranges 1.5–3 cm in width. [4]
It is usually distinct from the vastus intermedius, but occasionally blended with it. [5][ needs update]
Articularis genus pulls the suprapatellar bursa superiorly during extension of the knee, [3] and prevents impingement of the synovial membrane between the patella and the femur. [2]
This article incorporates text in the
public domain from
page 471 of the 20th edition of
Gray's Anatomy (1918)