extraembryonic celom

ex·tra·em·bry·on·ic ce·lom

that portion of the celom external to the embryo; communicates temporarily at the umbilicus with the intraembryonic celom. By the end of the eighth week, growth of the amniotic sac obliterates the celom as the amnion and chorion fuse. Synonym(s): exocelom, exocoelom

chor·i·on·ic cav·i·ty

(kōr'ē-on'ik cav'i-tē) The space surrounding the umbilical vesicle (primary yolk sac) and amnionic sac, except where the connecting stalk attaches to the cytotrophoblast of the blastocyst.
Synonym(s): extraembryonic celom.

单词	extraembryonic celom
释义	extraembryonic celom ex·tra·em·bry·on·ic ce·lom that portion of the celom external to the embryo; communicates temporarily at the umbilicus with the intraembryonic celom. By the end of the eighth week, growth of the amniotic sac obliterates the celom as the amnion and chorion fuse. Synonym(s): exocelom, exocoelom chor·i·on·ic cav·i·ty (kōr'ē-on'ik cav'i-tē) The space surrounding the umbilical vesicle (primary yolk sac) and amnionic sac, except where the connecting stalk attaches to the cytotrophoblast of the blastocyst. Synonym(s): extraembryonic celom.
随便看	hemianopic hemianopic pupillary reaction hemianopic reaction hemianopic scotoma hemianopic spectacles hemianopsia hemianoptic hemianosmia hemiaplasia hemiapraxia hemiarthroplasty hemiarthrosis hemiascomycetes hemiascomycetidae hemiasynergia hemiataxia hemiathetosis hemiatrophy hemiaxial hemiazygos hemiazygos vein hemiazygos vein, accessory hemiazygos veins hemiazygous vein hemiballism