. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Adult testis and epididymis, anterior view. {After Kobelt.) a a, entire series of metamorphosed tubules of the original Wolffian body ; b, remains of the upper set, converted into the hydatid in the head of the epidi- dymis; c, the middle set converted into the coni vasculosi; d, the lower set converted into the vasa aberrantia ; e, excretory duct of the Wolflian body, now the canal of the epididymis and vas deferens; /', bulb of the same, now a so-called hydatid ; A, duct 'of Miiller, not destined to be developed in the
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. Adult testis and epididymis, anterior view. {After Kobelt.) a a, entire series of metamorphosed tubules of the original Wolffian body ; b, remains of the upper set, converted into the hydatid in the head of the epidi- dymis; c, the middle set converted into the coni vasculosi; d, the lower set converted into the vasa aberrantia ; e, excretory duct of the Wolflian body, now the canal of the epididymis and vas deferens; /', bulb of the same, now a so-called hydatid ; A, duct 'of Miiller, not destined to be developed in the male; i, terminal bulb of the same, now the hydatid of Morgagni; g, hydatiform swellings of the same in the border of the epididymis; /, generative gland, now testis. and the stationary condition or disappearance of the other of these ducts. From this point, therefore, the course which each of these organs takes, is different for either sex. The male Wolffian body never disappears in all its parts, but is converted into the epididy- mis in such a manner that the middle line of cascal tubes {fig. 401. f c) is transformed into the 18—20 coni vasculosi (fig. 402. c) ; while their straight and open ends, as vasa efferen- tia, establish a communication with the rete vascidosum testis. The upper blind pouches (figAO\.a, b) and the bulb (/) of the excre- tory duct disappear, or become converted into the hydatids {fig. 402. b, /) upon the head of the epididymis, while the inferior pouches (fig. 401. d) disappear in part, and in part become elongated and tortuous, without forming any connection with the testis. These constitute the hitherto enigmatical vasa aber- rantia of Haller (fig. 402. rf). The excretory duct of the Wolffian body (fig. 401. c) is converted into the canal of the epididymis, (fig. 402. e), and ultimately into the vas deferens, and whilst the retro- gression and final obliteration of the terminal part of this duct takes place normally in the female, (fig. 403. <
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