释义 |
DictionarySeecoelomextraembryonic coelom
extraembryonic coelom[¦ek·strə‚em·brē′än·ik ′sē·ləm] (embryology) The cavity in the extraembryonic mesoderm; it is continuous with the embryonic coelom in the region of the umbilicus, and is obliterated by growth of the amnion. extraembryonic coelom
extraembryonic coelomIn humans, the cavity in the developing blastocyst that lies between the mesoderm of the chorion and the mesoderm covering the amniotic cavity and yolk sac.See also: coelom |