Human leg the femur. All four muscles unite in a common tendon inserted into the patella from where the patellar ligament extends it down to the tibial tuberosity. Fibers from the medial and lateral vasti form two retinacula that stretch past the patella on either sides down to the condyles of the tibia. The quadriceps is "the" knee extensor, but the rectus femoris additionally flexes the hip joint, and articular muscle of the knee protects the articular capsule of the knee joint from being nipped during extension. The sartorius runs superficially and obliquely down on the anterior side of the thigh, from
House of the Vettii his body on the stone while his right rests on his leg and holds a gold scepter. His right leg is bent and his foot drawn back. The only clothing he wears is a purple mantle which covers his right knee and drapes across his left thigh. From his head a Cypress cone raises up. To the right of Cyparissus Apollo's gilded tripod is supported on a stone. At the base of the tripod, the omphalos is covered with a net. In front of the stone lays the stag of Apollo with a broken spear protruding from its side. In