Arcus Tendineus Levator Ani

The Arcus Tendineus Levator Ani is a condensation of the fascia of the obturator internus muscle. It stretches from the ischial spine to the body of the pubis along the superior portion of the internal surface of the obturator internus muscle. It forms a white line separating the pelvic cavity from the ischiorectal fossa. It serves as the attachment site for the iliococcygeus portion of the levator ani.