Origin: Pubis - superior pubic ramus
Insertion: Lesser trochanter, linea aspera
Artery: Obturator artery
Nerve: Femoral nerve, sometimes obturator nerve
Action: Thigh - flexion, adduction, medial rotation
The Pectineus is a flat, quadrangular muscle, situated at the anterior part of the upper and medial aspect of the thigh. It arises from the pectineal line, and to a slight extent from the surface of bone in front of it, between the iliopectineal eminence and tubercle of the pubis, and from the fascia covering the anterior surface of the muscle; the fibers pass downward, backward, and lateralward, to be inserted into a rough line leading from the lesser trochanter to the linea aspera.