1 = Pectineus muscle, 2 = PMB belongs to femoral nerve, 3 = Gracilis muscle, 4 = GMB, 5 = Adductor longus muscle, 6 = ALMB, 7 = Adductor brevis muscle, 8 = ABMB, 9 = Adductor magnus muscle, 10 = AMMB.
The body surface landmarks A = Greater trochanter of femur; B = lateral femoral epicondyle; C = pubic tubercle; P1~P5 are the projection points of NEPs of pectineus, gracilis, adductor longus, adductor brevis and adductor magnus muscle, respectively.