230 PRACTICAL ANATOMY. 



arises from posterior surface of body of pubes, spine 

 of ischium, and obturator ligament, extending from 

 spine of ischium to posterior surface of pubes. This 

 ligament is formed by the junction of the obturator 

 with the recto-vesical fascia. 



FIG. 103. MUSCLES OF THE PERINEUM. 



Insertion Into coccyx and sides of rectum and 

 sphincter, side of prostate gland ; it forms a sling, 

 which supports the pelvic viscera. 



Nerve Permeal. 

 COMPRESSOR URETHRA. 



Origin From border of ramus of pubes, and passes 

 down and surrounds the membranous urethra. 



Nerve Permeal. 



