The development of the human body; a manual of human embryology . tionof the Wolffian duct which forms the globus minor of theepididymis, represents another portion of it and is knownas the vas aberrans. The Wolffian duct is retained complete, the portion ofit nearest the testis becoming greatly elongated andthrown into numerous coils, forming the body and globusminor of the epididymis, while the remainder of it is con-verted into the vas deferens and the ductus lateral outpouching of the wall of the duct to form alongitudinal fold appears at about the third month andgives rise
The development of the human body; a manual of human embryology . tionof the Wolffian duct which forms the globus minor of theepididymis, represents another portion of it and is knownas the vas aberrans. The Wolffian duct is retained complete, the portion ofit nearest the testis becoming greatly elongated andthrown into numerous coils, forming the body and globusminor of the epididymis, while the remainder of it is con-verted into the vas deferens and the ductus lateral outpouching of the wall of the duct to form alongitudinal fold appears at about the third month andgives rise to the vesicula seminalis, the lateral position ofthe outgrowth explaining the adult position of the vesi-culae lateral to the vasa deferentia. With the Mullerian duct the case is very different, sinceit disappears completely throughout the greater part of its32 378 THE DEVELOPMENT OF THE HUMAN BODY. course, only its upper and lower ends persisting, theformer giving rise to a small sac-like body, the sessilehydatid of Morgagni, attached to the upper end of the. FEMALE INDIFFERENT MALE Fig. 205.—Diagrams Illustrating the Transformations of theMullErian and Wolffian Ducts. B, Bladder; C, clitoris; CG, canal of Gaertner; CI, cloaca; Eo, epo-ophoron; Ep, epididymis; F, Fallopian tube; G, genital gland; HE,hydatid of epididymis; HM, hydatid of Morgagni; A, kidney; MD,Miillerian duct; 0, ovary; P, penis; Po, paroophoron; Pr, prostategland; R, rectum; T, testis; U, urethra; UM, uterus masculinus;Ur, ureter; US, urogenital sinus; Ul, uterus; V, vagina; VA, vasaberrans; VD, vas deferens; VS, vesicula seminalis; WB, Wolffianbody; WD, Wolffian duct.—{Modified from Huxley.) testis near the epididymis, while the latter is representedby a depression in the floor of the urethra known as the THE TRANSFORMATION OF THE MESONEPHROS. 379 sinus pocularis, which is usually prolonged upward into ashort cylindrical pouch known as the uterus masculinus,though it corresponds to the vagina rather th
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectembryol, bookyear1902
