The adductor magnus (also adductor magnus muscle, latin: musculus adductor magnus) is the largest of the adductor muscle group. The adductor magnus is a large triangular muscle situated in the medial region of the thigh.
The adductor magnus begins from the inferior pubic ramus and, additionally, from the ischial tuberosity. The adductor magnus inserts onto the medial lip of the linea aspera and the medial epicondyle of the femur.
The anterior fibers of the adductor magnus adduct and rotate the femur externally, but the posterior fibers extend and rotate the femur internally.