Assertion: amnion | /r/HasProperty | formed
Facets:
value: from two germ layers
type: OTHER
value: from cells
type: OTHER
value: from membranes
type: OTHER
Source sentences:
text: While the amnion is being formed, the mesoderm continues to extend around the vesicle between the ectoderm and the entoderm.
text: The amniotic sac is formed from two distinct layers or membranes, an inner "amnion" and outer "chorion.
text: As the embryonic body assumes definite shape and the amnion is formed, -there is not the complete separation of amnion from the chorion seen, for example, in the chick, the embryo remaining connected posteriorly with the chorion by means of a short thick cord of mesodermic tissue.
text: The amnion is formed from the lateral folds of the extraembryonic ectoderm and the external layer of the lateral plates, which rise and close up over the embryo, or by means of the formation of a cavity among the embryo cells that is gradually transformed into the membrane that surrounds the embryo.
text: It is formed from cells that detach from the cytotrophoblast layer of the trophoblast stage of the embryo.
text: The amnion is formed from two germ layers:
text: The amnion is formed from the lateral folds of the extraembryonic ectoderm and the external layer of the lateral plates, which rise and close up over the embryo, or by means of the formation of a cavity among the embryo cells that is gradually transformed into the membrane that surrounds the embryo.