632 



A MANUAL OF ANATOMY 



The hymen begins to appear about the fifth month of intra-uterine hfe as 

 a fold of the mucous membrane at the point where the vagina opens into the 

 uro-genital sinus. 



The carunculse myrtiformes are small elevations which repre- 

 sent the remains of the hymen after its disappearance. Though 

 called carunculcB (fleshy), they are really mucous excrescences. 



The fourchette, or fraenulum pudendi, is a crescentic fold of the 

 uro-genital lining membrane which is situated a little in front 

 of the posterior commissure, and it is best marked in early life. 



The fossa navicularis is a small depression which lies between 

 the posterior commissure and the fourchette. 



Vestibule ^ 

 Meatus Urinarius.^ 



Bulbus Vestibul 



Dorsal Vein of the 

 Clitoris 



., Pars Intermedia 



Glans Clitoridis 

 Crus Clitoridis 



Sphincter Vaginae 



Right Gland of Bartholin 

 and its Duct 



Vagina 



Fig. 279. — Dissection showing the Bulbi Vestibuli and Glands 

 OF Bartholin (Modified from Kobelt) 



(The cross on either side of the Vaginal Orifice shows the position of the 

 opening of the Duct of Bartholin's Gland). 



The bulbi vestibuli are two ovoid masses of erectile tissue i inch 

 in length, which are situated on either side of the external orifice 

 of the vagina and vestibule beneath the mucous membrane. Each 

 bulb is covered by a delicate fibrous capsule derived from the 

 antero-inferior layer of the triangular ligament, superficial to which 

 the bulb of either side lies. The outer surface is convex, and is 

 covered by one half of the sphincter vaginae muscle. The inner 

 surface is slightly concave, and is covered by the vaginal mucous 

 membrane. Posteriorly the bulbs diverge, and anteriorly, having 

 become narrow, they ]:)ass upwards and forwards, and ultimately 

 meet in the middle line, where they are attached to the antero- 



