1072 SURGICAL ANATOMY OF THE PERINEUM. 



on to the side of the bladder, forming the lateral true ligaments of the organ. 

 Another prolongation invests the vesiculae seminales, and passes across between 

 the bladder and rectum, being continuous with the same fascia of the opposite side. 

 Another thin prolongation is reflected round the surface of the lower end of the 

 rectum. The Levator ani muscle arises from the point of division of the pelvic 

 fascia, the visceral layer of'the fascia descending upon and being intimately adher- 

 ent to the upper surface of the muscle, while the under surface of the muscle is 

 covered by a thin layer derived from the obturator fascia, called the iscfiio-rectal or 

 anal fascia. In the female the vagina perforates the recto-vesical fascia, and 

 receives a prolongation from it. 



