In birds,reptiles,and mammals it replaces the mesonephros as the functional excretory organ and develops into the adult kidney. 在鸟类、爬行动物和哺乳动物中它代替中肾起排泄器官的作用，并最终发育成肾。
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，中肾管：中肾的胚胎导管，在雄性中变成输精管，在雌雄两性中都发育成输尿管
The development of the kidney, the major excretory organ after birth, consists of 3 stages: the pronephros, mesonephros and metanephros. 摘要肾脏是人体主要的排泄器官，它的发育经过原肾、中肾、后肾3个阶段。
In birds, reptiles, and mammals it replaces the mesonephros as the functional excretory organ and develops into the adult kidney. 后肾脊椎动物胚胎发育中的第三个也是最后一个排泄器官。在 鸟 类、爬行动物和哺乳动物中它代替中肾起排泄器官的作用，并最终发育成肾The third and final excretory organ that develops in a vertebrate embryo.
The third and final excretory organ that develops in a vertebrate embryo. In birds, reptiles, and mammals it replaces the mesonephros as the functional excretory organ and develops into the adult kidney. 后肾脊椎动物胚胎发育中的第三个也是最后一个排泄器官。在鸟类、爬行动物和哺乳动物中它代替中肾起排泄器官的作用，并最终发育成肾
In present opinion, there are at least two independent sites associated with definitive hematopoiesis, those are, yolk sac and para aortic splanchnopleura (PAS)/aorta gonad mesonephros(AGM). 目前认为 ,至少有两个独立的部位与永久造血有关 ,即卵黄囊和胚内的PAS/AGM区。
