囊胚腔,卵裂腔
These orient themselves so that a fluid-filled cavity, the blastocoel, forms inside the mass of cells. 這些細胞進行自我調整,以致在細胞群內(nèi)部形成一個充滿液體的腔,即囊胚腔。
囊胚腔,卵裂腔,胚泡腔