What is the Femur?

6. Muscle Insertion Points

Insertion is the point of attachment in a muscle where movement transpires. The five adductor muscles of the thigh help stabilize the hip bone and stretch from the pelvis to the femur. They include the adductor magnus, adductor longus, adductor brevis, and obturator externus. These adductor muscles are on the inside of the thigh. The adductor longus’ main function is to provide movement toward the median axis of the body and laterally rotate the thigh. The three hamstrings that run up and down the back of the thigh -- the semimembranosus, semitendinosus, and biceps femoris -- allow the knee to bend.