原腎[1][2](英語:archinephros),是原始腎臟,在盲鰻和某些無足目動物幼體體內得以保存下來。亦見於高等動物胚胎中,是最簡單的排泄器官。原腎在人類和其它哺乳動物體內沒有任何功能[3]。
參考資料
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