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embryoblast

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
embryoblast /em·bryo·blast/ (em´bre-o-blast″) inner cell mass; an aggregation of cells at the embryonic pole of the blastocyst, destined to form the embryo proper.
em·bry·o·blast (mbr--blst)
n.
Any of the germinal disk cells of the inner cell mass in the blastocyst that form the embryo.


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Week 3 By the time the zygote has reached the uterus it has formed a blastocyst, a collection of 500 or more cells with an inner mass called the embryoblast, which subsequently becomes the embryo, and an outer shell of cells called the trophoblast, which forms the placenta.
 
 
 
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