noun ダウンロード 🔗共有 栄養膜 The membrane of cells that forms the wall of a blastocyst during early pregnancy, providing nutrients to the embryo and later developing into part of the placenta. Examples : ""The trophoblasts, crucial in the early stages of pregnancy, nourish the developing embryo and eventually contribute to the formation of the placenta." " 妊娠初期に不可欠な栄養膜は、発育中の胚に栄養を与え、最終的に胎盤の形成に貢献します。 biology medicine anatomy physiology organ human body science biochemistry function AIとチャット語彙ゲーム読解練習