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PLATE LIX. 



MUSCLES AND FASCIAE 



A External sphincter. 



B Levator ani. 



C Crus penis (corpus cavernosum). 



D The section of the left cms, at its 

 origin from the ramus. 



E Erector penis. 



F Accelerator urinae covering the bulb. 



G Slips from the accelerator, which pass 

 over crura and, expanding into an 

 aponeurosis, meet on the dorsuni of 

 the penis over the dorsal vein. 



H Corpus spongiosurn. 



I Fascia of Colles. 



K Transversus perinei. 



L Anterior layer of the triangular liga- 

 ment. 



M The skin around anus. 



N Placed on the anterior portion of the 

 tuber ischii. 



Fascia lata covering the adductor 

 muscles. 



P Gluteus maximus. 



R Tip of coccyx. 



VESSELS 



a Inferior hremorrhoidal branches of the 

 internal pudic. 



b Superficial perineal branches of the 

 internal pudic. 



c Transverse perineal artery. 



NERVES 



1 Inferior hsemorrhoidal. 



2 Superficial perineal. 



8 Muscular branch to the erector penis. 

 4 Muscular branch from superficial peri- 

 neal to levator ani. 



5 Muscular branches to accelerator urinse 



and bulb. 



C Inferior pudenda! from small sciatic. 

 7 Perineal branch of the fourth sacral. 



