Pectineus Muscle
The pectineus is a flat, quadrangular muscle, situated at the front part
of the upper and middle part of the thigh. It arises from the pectin pubis
(called the "pectineal line") and, to some extent, from the surface of the
bone just in front of it. Some fiber also comes from the tissue covering
the front surface of the muscle itself. The pectineus muscle flexes and
moves the thigh toward the body and rotates it toward the center.