252 



NORMAL HISTOLOGY. 



the latter and the surrounding fibres being uncertain. It is probable, how- 

 ever, that the fibrils end mostly in the walls of the follicular blood-vessels, 

 although some are said to penetrate to the follicular epithelium. The exist- 

 ence of sympathetic ganglia within the medulla has not been established. 



RUDIMENTARY ORGANS REPRESENTING FCETAL REMAINS. 



In the male the Wolffian body and its duct play very important roles in 

 the development of the excretory canal for the sexual gland, while the 

 Mullerian duct remains rudimentary. In the female the converse is true, the 

 Mullerian ducts forming the excretory canals the oviducts, the uterus and 

 the vagina while the Wolffian structures are of secondary importance and 



Malf 



GM 



Female 



cc 



BG 



Ur CG Pr 



FIG. 303. Diagrams illustrating differentiation of two sexes; derivates from Wolffian body are red, 

 those from Mullerian duct are blue. Male: T, testicle; VE, vasa efferentia ; GM, globus major; VD, 

 vas deferens; Pa, paradidymis ; VA, vas aberrans ; SV, seminal vesicle; AT, appendix testis ; AE, 

 appendix epididymidis ; B, bladder]; PU, prostatic utricle ; Pr, prostate ; Ur, urethra ; CG, Cowper's 



fland ; CC, corpus cavernosum ; R, rectum ; RD, renal duct ; K, kidney. Female : O, ovary ; Ov, ovi- 

 uct ; F, fimbria ; U, uterus; V, vagina ; DEp, duct of epoophoron; TEp, tubules of epoophoron; Po, 

 paroophoron ; HM, hydatid of Morgagni ; GD, Gartner's duct; BG, Bartholin's gland; C, clitoris; K, 

 kidney; R, rectum. (Modified from Wiedersheim.) 



give rise to rudimentary and functionless organs, situated chiefly in the 

 vicinity of the ovary and the Fallopian tube between the layers of the broad 

 ligament. These fcetal remains include: the epobphoron, Gartner's duct, the 

 paroophoron, and the vesicular appendages. 



The epoophoron, also called the parovarium or organ of Rosenmiiller, 

 lies between the layers of the broad ligament, in the area bounded by the 

 ampulla of the oviduct, the ovarian fimbria and the tubal pole of the ovary. 

 It is flat, triangular or trapezoidal in outline, and measures from 2-2. 5 cm 

 in length. It consists of from eight to twenty narrow wavy tubules, the 

 ductuli transversi, which, beginning with closed and slightly dilated ends, 

 diverge from the vicinity of the hilum of the ovary and join, almost at right 

 angles, a common chief duct that lies close and parallel to the oviduct, 



