From Embryology
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Fig. 309. Diagram representing certain persistent portions of the mesonephros in the male


Although the mesonephroi become large functional organs during the earlier stages of development, they atrophy and disappear for the most part, coincidently with the appearance and development of the kidneys. The degeneration begins during the sixth or seventh week and goes on rapidly until, by the end of the fourth month, little remains but the ducts and a few tubules. The degenerative processes consist of (1) an ingrowth of connective tissue among the tubules, (2) atrophy of the epithelium of the tubules, and (3) atrophy of the glomeruli, The portions which remain differ in the two. sexes, and since the remnants are taken up in the formation of the male and female genital organs it seems best to discuss them more fully under those heads (pp. 383,386). The accompanying table, however, will give a clue to their fate (see also Figs. 309 and 310). See comprehensive table

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Bailey FR. and Miller AM. Text-Book of Embryology (1921) New York: William Wood and Co.

Cite this page: Hill, M.A. (2019, July 23) Embryology Bailey309.jpg. Retrieved from

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