DEVELOPMENT OF THE GENITO-UKINARY SYSTEM. 



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bladder. This fact is shown "by certain cases of malformation, in which the ureters have 

 not reached the bladder, but terminate in blind extremities. The development of the 



FIG. W&. Diagrammatic representation of t/te genito-urinary system. (Henle.) 



A, embryonic condition, in which there is no distinction of sex ; B, female form; C, male form. The dotted lines in 

 B and C represent the situations which the male and female genital organs assume after the descent of the ovaries 

 and testicles. Tho small letters in B and C correspond to the capital letters in A. 



Fig. 308 A. A, kidney; B, ureter; C, bladder; D, urachus, developed into the median ligament of the bladder; E, 

 constriction which becomes the urethra ; F', Wolffian body; G, Wolffian duct, with its opening below, G'; II, 

 duct of Miiller, united below, from the two sides, into a single tube, J, which presents a single opening, J', 

 between the openings of the Wolffian ducts ; I, ovary or testicle ; L, gubernaculum testis or round ligament of 

 the uterus : M, genito-urinary sinus ; N, O, external genitalia. 



Fig. 808, B (female). a, kidney; b, ureter; c. bladder; d, urachus; e, urethra; f, remains of the Wolffian body (paro- 

 varium) ; g, remnant of the Wolffian duct; h, Fallopian tube ; i, uterus ; i', vagina ; k, ovary; 1, round ligament 

 of the uterus; m, extremity of the urethra; n, clitoris; n' corpus cavernosum of the clitoris; n", bulb of the 

 vestibule ; o. external genital opening ; p, excretory duct of the gland of Bartholinus. 



Fig. 308. C (male). a, kidney ; b, ureter ; c, bladder ; d, urachus ; e, m. urethra ; f, epididymis ; g, vas deferens ; g', 

 seminal vesicle; g", ejaculatory duct; h, i, remains of the duct of Miiller ; k, testicle; 1, gubernaculum testis ; n, 

 n', n". urethra and penis; o, scrotum; p, gland of Cowper; q, prostate. 



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