yogabook / muscles / articularis genus

Articularis genus

The articularis genus is often regarded as a distal division of the vastus intermedius, which lies at its maximum depth above the femur and attaches to the suprapatellar bursa.
femur and attaches to the suprapatellar bursa. For a long time it was regarded as a muscle that tightens it, i.e. pulls its cranial end cranially so that it cannot be squeezed, which would make it somewhat equivalent to the anconeus muscle on the extensor side of the upper limb. Recent studies show that it has three layers, the superficial of which originates from the vastus intermedius and the distal anterior and anterolateral femur. In 60% of cases, the origin of the intermediate layer also lies there. The profound layer and in 40% also the intermediate layer originate exclusively from the distal femur.
femur. The insertion lies at different profound levels of the suprapatellar bursa and the joint capsule. The vastus medialis radiates along its entire length into the aponeurosis of the vastus intermedius. Fibers of the articularis genus muscle are intermingled to form an interlaced muscle system with a common innervation. In addition to the aforementioned effect on the bursa and capsule, a proprioceptive effect is suspected.

Origin: relatively small area on the anterior and anterolateral distal femur
Attachment: suprapatellar bursa and joint capsule
Innervation: Nervus femoralis (L2-L4)