Before we dig into the function of the adductors, let’s clarify their exact location. There are five adductors, and they all originate on the pubic bones and the ischial tuberosities (sitting bones). Two of the adductors, the pectineus, and the adductor brevis, are quite short and insert on the back of the upper femur (thighbone). The adductor longus and adductor Magnus are longer and larger, and insert at the back of the thighbone, on the middle and lower part of the shaft. The longest adductor, the gracilis, inserts below the knee, on the inner upper tibia (shinbone).