Assertion: amnion | /r/HasProperty | . 483
Facets:
Source sentences:
text: That the embryo is completely enclosed dorsally and laterally by a cavity, the amniotic cavity, which is lined by ectoderm continuous with the ectoderm later epidermis of the embryo, the ectoderm lining the cavity and the overlying parietal mesoderm together constituting the amnion (Fig. 483).