Posterior Free Edge of the Urogenital Diaphragm
The Urogenital Diaphragm is a muscular connective tissue plate. It stretches between the rami of the ischium and pelvis and consists primarily of the deep transverse perinei muscle. Between the urogenital diaphragm and the arcuate ligament of the pubis, a small cleft permits passage of the deep dorsal vein of the penis (or clitoris) to the prostatic (or vesical) venous plexus. At the Posterior Free Edge of the Urogenital Diaphragm, the inferior perineal membrane is continuous with the fascia of the pelvis viscera.