- amniotic fold n any of the folds that consist of ectoderm and the outer layer of mesoderm, that arise from the extraembryonic blastoderm first at the head, then at the tail, and finally on each side, and that form the amnion and much of the chorion
* * *the folded edge of the amniotic membrane where it rises over and finally encloses the embryo.
Medical dictionary. 2011.
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amniotic fold — noun : one of the folds consisting of ectoderm and the outer layer of mesoderm that arises from the extraembryonic blastoderm first at the head, then at the tail, and finally on each side and that gives rise to the amnion and much of the chorion … Useful english dictionary
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