MtfLLERIAN DUCTS. 



997 



cord, and subsequently through its whole extent, while the Wolffian ducts remain 

 separate to their ends. 



Another structure is likewise seen at this stage in connection with the Wolffian 

 body in both sexes, viz. an elevation of peritoneum, with tissue enclosed, which 

 extends from the lower end of the testis or ovary to the point where the excretory 

 and Miillerian ducts quit their contact with the lower extremity of the Wolffian 

 body, and, there becoming stronger, extends onwards from this point to the processus 

 vaginalis or canal of Nuck. The further development of these parts in each of the 

 two sexes requires a separate description. 



Fig. 693. DIA- 

 GRAM OF THE FE- 

 MALE TYPE OF 

 SEXUAL ORGANS. 



Fig. 693. 



This and the fol- 

 lowing figure repre- 

 sent diagrammati- 

 cally a state of the 

 pirts not actually 

 visible at one time ; 

 but they are in- 

 tended to illustrate 

 the general type in 

 the two sexes, and 

 more particularly 

 the relation of the 

 two conducting tubes 

 to the development 

 of one as the natural 

 passage in either 

 &ex, and to the 

 natural occurrence 

 of vestiges of the 

 other tube, as well 

 as to the persistence 

 of the whole or parts 

 of both tubes in oc- 

 casional instances of 

 hermaphroditic na- 

 ture. 



1, the left kidney ; 



2, suprarenal body; 



3, ureter, of which 

 a part is removed 

 to show the parts 



passing within it ; 4, urinary bladder ; 5, urachus ; o, the left ovary nearly in the 

 place of its original formation ; p o, parovarium ; W, scattered remains of Wolffian tubes 

 near it ; d G, remains of the left Wolffian duct, such as give rise to the duct of Gaertner, 

 represented by dotted lines ; that of the right side cut short is marked w ; /, the abdo- 

 minal opening of the left Fallopian tube ; ti, the upper part of the body of the uterus, 

 presenting a slight appearance of division into cornua ; the Fallopian tube of the right 

 side cut short is marked m ; g, round ligament, corresponding to gubernaculum ; i, lower 

 part of the intestine ; v a, vagina ; h, situation of the hymen ; C, gland of Bartholin 

 (Cowper's gland), and immediately above it the urethra ; c c, corpus cavernosuin clitoridis ; 

 s c, vascular bulb or corpus spongiosum ; n, nympha ; l t labium ; v, vulva. 



In the female, the vagina, uterus, and Fallopian tubes are formed out of the Mttl- 

 lerian ducts. That portion of the ducts in which they become fused together is de- 

 veloped into the vagina, the cervix, and part of the body of the uterus ; and the pecu- 

 liarity of the mode of fusion accounts for the occurrence, as a rare anomaly, not only 

 of double uterus, but of duplicity of the vagina, coincident with communication 

 between two lateral halves of the uterus. The part of the Mullerian duct extending 

 from the base of the Wolffian body, to the point where the two ducts meet, constitutes 



