extraembryonic coelom


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extraembryonic coelom

a cavity external to the developing embryo that forms between the mesoderm of the chorion and that covers the amniotic cavity and yolk sac. Also called exocoelom.

extraembryonic coelom

In 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