Rectus femoris: A quadriceps (thigh) muscle that crosses both the hip and knee and serves as a primary hip flexor. • ...
Medial compartment syndromes can be approached through a medial incision along the course of the saphenous vein, rotation of the sartorius muscle, and incision of the medial intermuscular septum.
There are five types of hip flexor muscles: the iliacus, pectineus, psoas major, rectus femoris, and sartorius muscles. You use these muscles to lift your knees and bend forward at the hip.