| 释义 |
〔pronephros〕A kidneylike organ, being either part of the most anterior pair of three pairs of organs in a vertebrate embryo, disappearing early in the embryonic development of higher vertebrates, but functioning as a kidney in some simple vertebrates, such as the lamprey.前肾，原肾：一肾状器官，是脊椎动物胚胎中三对器官最前面一对的一部分，在高级脊椎动物的早期发育时消失，但在一些初级脊椎动物中作为肾脏，如八目鳗〔nephridium〕The excretory organ of a vertebrate embryo from which the kidney develops.原肾：脊椎动物胚胎的排泄器官，肾由此发展而来 |