Origin Pecten pubis and pectineal surface of the pubis Insertion Pectineal line of femur Action Adducts the thigh and flexes the hip joint Innervation Femoral nerve usually, although it may sometimes receive additional innervation from the obturator nerve as well (L2, L3, L4) Arterial Supply Medial circumflex femoral branch of femoral artery and obturator artery