258 



DISSECTION OF THE PERINEUM. 



Triangular 

 ligament. 



To see deep 

 muscle. 



Deep 



transverse 

 muscle. 



The TRIANGULAR LIGAMENT transmits the urethra, but is not so 

 strongly marked as in the male (see p. 248) ; it is interrupted to a 

 large extent in the middle line by the aperture of the vagina. 



Dissection. By cutting through the superficial layer of the liga- 

 ment in the same way as in the male (p. 249), the deep muscle, with 

 the pudic vessels and their branches, and the dorsal nerve of the 

 clitoris, will be arrived at. 



The TRANSVERSUS PERINEI PROFUNDUS is the representative of the 

 constrictor urethrse of the male (p. 249). It arises on each side from 

 the pubic and ischial rami ; and the fibres are directed inwards to be 

 inserted mainly into the side of the vagina. The hindmost ones join 



Fm. 96. THE CLITORIS. 



a. Crus, and &, body of the corpus cavernosum. 

 c. GHans clitoridis. 



The lower figure shows the structure on a vertical section ; the same 

 letters refer to like parts. 



Glands of 

 Bartholin : 



shape and 

 size ; 



duct. 



the central point of the perineum ; and anteriorly some are con- 

 tinued across from side to side in front of the urethra. Beneath the 

 last is a circular layer of involuntary fibres, as in the other sex. 



GLANDS OF BARTHOLIN. At the hinder part of the entrance to the 

 vagina on each side is a yellowish glandular body, which corresponds 

 to Cowper's gland in the male (p. 250). It has the shape and size 

 generally of a small bean, its greatest length, which is directed from 

 before backwards, measuring about half an inch. It lies close to the 

 hinder end of the bulb of the vestibule, and is covered by the fibres 

 of the sphincter vagina}. The duct is directed forwards and down- 

 wards for about three-quarters of an inch, to open on the inner 

 aspect of the nympha of the same side, immediately below the hymen 

 or its remains. 



