426 A MANUAL OF ANATOMY. 



Incisions. (l) Incise the labia majora close to their inner margin from 

 the mons veneris to the median line of the perineum ; carry the incision 

 around the anus to the coccyx behind. 



(2) Make the transverse incisions as indicated on page 404. 



Carefully remove the integument, especially about the labial margin and 

 around the anus. 



The descriptions of the various structures given under 

 the male perineum will apply with a slight modification to 

 the female parts. 



The Superficial Fascia. See page 404. 



This consists of the two layers, these layers being pierced 

 by the vaginal opening. The deep layer forms in the 

 female an imperfect dartos of the labia majora as it does 

 the dartos of the scrotum in the male. 



Sphincter Ani Extermis. See page 407. 



The Ischiorectal Fossa, situation, formation, boundaries, 

 and contents. See page 407. Fig. 86. 



The Internal Pudic Artery. See page 411. Fig. 86. 



In the female there are these variations : the superficial 

 perineal artery is larger than in the male and is distributed 

 to the labia majora and minora. The artery of the bulb 

 ends in the bulb of the vestibule, and is smaller than in 

 the male. The artery of the crus is a small branch to the 

 crus clitoridis. 



The dorsal artery of the clitoris is much smaller than 

 the corresponding artery in the male. 



The Internal Pudic Nerve. See page 413. Fig. 86. 



In the female the superficial perineal nerves supply the 

 labia, the erector clitoridis, the sphincter vaginae, and the 

 compressor vaginae. The dorsal nerve of the clitoris is a 

 small branch which supplies that organ. 



