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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Embryotroph ： ウィキペディア英語版 Embryotroph Embryotroph is the embryonic nourishment in placental mammals. In order to explain in more depth what an embryotroph actually is, other words such as syncytiotrophoblast and ''uterine milk'' must be mentioned in that same context. ==Formation of Syncytiotrophoblast== On approximately the seventh day of development, the trophoblast (cells that make up the outer part of the blastocoel) divides to form two separate layers: the cytotrophoblast (the inner layer) and the syncytiotrophoblast (the outer layer). Using enzymes, the syncytiotrophoblast penetrates the tissues of the mother, then it attaches to these tissues by burrowing with long projections, breaking maternal blood vessels. The chemical reason why this process occurs is currently unknown.〔(Histology of the Placenta, University of Ottawa )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Embryotroph」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.