mesonephros defined in 1951 yearmesonephros - mesonephros;
mesonephros - Part of kidney of vertebrates which arises in embryonic development later than, and posterior to, the pronephros and discharges into pronephric (Wolffian) duct. There is one on each side. The testes connect with them, and in adult sperms pass through them and down the Wolffian ducts to the exterior. Become functional kidneys of adult anamniotes. In amniotes they function as kidneys in embryo; but later in development are superseded in this function by metanephros and they degenerate except for part connected with testis in male. See also: Epididymis, Vas efferent, Metanephros.
near mesonephros in Knolik
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