The development of the kidney, the major excretory organ after birth, consists of 3 stages: the pronephros, mesonephros and metanephros.
脏是人体主要
排泄器官，它发育经过原、
、后3个阶段。
The development of the kidney, the major excretory organ after birth, consists of 3 stages: the pronephros, mesonephros and metanephros.
脏是人体主要排泄器官，它发育经过原、、后3个阶段。
The embryonic duct of the mesonephros, which in the male becomes the vas deferens and in both sexes gives rise to the ureter.
沃尔夫氏管，管：胚胎导管，在
变成输精管，在雌
都发育成输尿管
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