Preimplantation Embryos
《英文msh詞典》Preimplantation Embryos
[入口詞] Preimplantation Embryos
[主題詞] Blastocyst
[英文釋義] Early preimplantation mammalian EMBRYO in the post-MORULA stage. Its structure consists of a TROPHOBLASTS-enclosed fluid-filled cavity with an inner cell mass. After EMBRYO IMPLANTATION,the inner cell mass of the blastocyst becomes the embryonic disc of the developing embryo.