PELVIS MINOR 



443 



urethral orifice, which separates it from the lower end of the 

 fundus. It is separated from the back of the symphysis and 

 the pubo-prostatic ligaments by the retro-pubic pad of fat. 

 The retro-pubic pad appears in median sections of the pelvis 

 as a small wedge-shaped mass of soft, fatty areolar tissue 

 (Fig. 210); it is part of the extra-peritoneal fat, and it 

 adapts itself to the changing conditions of the bladder. 



Pyramidalis 

 abdominis 



Retro-pul 



cavernosum 

 peni 



tiulbo-cavernosus 



FIG. 210. Median section through the Pelvis of an Adult Male. The 

 bladder is nearly empty, and the urethra is divided along its whole 

 length. 



R. Rectum. 



S. Symphysis. 



B. Bladder. 



The internal urethral orifice, by which the urine leaves the 

 bladder, is placed at the most dependent part of the bladder, 

 which is situated at the junction of the fundus with the 

 anterior border, in the region termed the neck of the bladder. 

 It is surrounded by the base of the prostate, which presents 

 a structural continuity with the bladder wall. 



Changes in the form of the Urinary Bladder as it becomes 



