在充满液体的腔体旁边的这个簇状细胞是囊胚的一个区域，称为内细胞团。
The cells of this cluster inside next to the fluid-filled cavity is a region of the blastocyst called the inner cell mass.
去核时卵母细胞质剩得过少可导致移核胚过早（6-细胞期）发生致密化或形成内细胞团细胞数目较少的小囊胚；
Too much reduction of the cytoplasmic mass at enucleationled to premature compaction of the nuclear transplant embryos at 6-cell stage or the formation of small blastocysts with few ICM cells;
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