Articularis genu is one of the muscles around the knee joint. It arises from 2-3 origins on the anterior surface of the distal third of the femur. It inserts into the apex of the suprapatellar bursa of the knee joint.
It acts to retract the bursa away from the articulating surfaces as the knee extends.
Articularis genu is innervated by the posterior division of the femoral nerve (L3,4).