612 



THE SACEAL NERVES. 



In the female the dorsal nerve of the clitoris is much smaller than the 

 correspondiiifr branch in the male ; it is similarly distributed. 



C. The inferior Immorrlioidal nerve arises from the pudic nerve at 



the back of the pelvis, or it may come directly from the sacral plexus, 

 and be transmitted through the small sacro-sciatic foramen to its dis- 

 tribution in the lo\Yer end of the rectmn. 



Fisr. 373. 



Fig. 373. — Dissection of the Perin-eum op the Male to show the Distribution of 

 THE Pudic and other Nerves (after Hirsclifeld and Leveille). \ 



Oh tlie right side a pai-t of the gluteus maximus muscle and the great sacro-sciatic liga- 

 ment have Ijeen removed to show the descent of the nerves from the great sacro-sciatic 

 foramen. 1, great sciatic nerve of the right side ; 2, lesser sciatic nerve ; 2', its muscular 

 liranches to the gluteus maximus (right side) ; 2", cutaneous brandies to the buttock (left 

 side) ; 3, continuation of the nerve as posterior middle cutaneous of the thigh ; 3, internal 

 and external cutaneous branches ; 4, 4, inferior pudendal branch ; 4', network of this and 

 the perineal nerves on the scrotum ; 5, right pudic nerve ; 6, superior branch or nerve 

 to the penis ; 7, the external superficial perineal branch ; 7', the internal superficial 

 perineal liranch ; 8, musculo-bulbal brandies ; 9, lia^morrhoidal or cutaneous anal branches ; 

 10, cutaneous branch of the fourth sacral nerve. 



Some of the branches of this nerve end in the external sphincter and in the 

 adjacent skin of the anus ; others reach the skin in front of that part, and 

 communicate with the inferior pudendal branch of the small sciatic nerve, and 

 with the superficial perineal nerves. 



SumiAP.Y. — The pudic nerve supplies the perinteum, the penis, and 

 part of the scrotum, also the urethral and anal muscles in the male ; and 

 the clitoris, labia, and other correspondinj^; parts in the female. It 

 communicates with the inferior pudendal branch of the small sciatic 

 nerve. 



