Assertion: amnion's space | /r/AtLocation | the embryoblast
Facets:
Source sentences:
text: As the implantation of the blastocyst progresses, a small space appears in the embryoblast, which is the primordium of the amniotic cavity.
text: As the embryo progresses in implantation, a small space appears in the embryoblast and forms the amniotic cavity.
text: As the implantation of the blastocyst progresses, a small space appears in the embryoblast, which is the primordium of the amniotic cavity.