Origin Anterior surface of body of pubis, just lateral to pubic symphysis Insertion Middle third of linea aspera, between the more medial adductor magnus and brevis insertions and the more lateral origin of the vastus medialis Action Adducts and flexes the thigh, and helps to laterally rotate the hip joint Innervation Anterior division of obturator nerve (L2, L3, L4) Arterial Supply Obturator artery and medial circumflex femoral artery