| 释义 |
DictionarySeemesodermextraembryonic mesoderm
ex·tra·em·bry·on·ic mes·o·dermextraembryonic cells that, although derived from the zygote, are not part of the embryo proper and contribute to the fetal membranes (for example, amnion). Synonym(s): primary mesodermextraembryonic mesodermMesoderm lying outside the embryo proper and involved in the formation of amnion, chorion, yolk sac, and body stalk.See also: mesoderm |