the process in which a gastrula develops from a blastula by the inward migration of cells
Gastrulation is a phase early in the embryonic development of most animals, during which the single-layered blastula is reorganized into a trilaminar ("three-layered") structure known as the gastrula. These three germ layers are known as the ectoderm, mesoderm, and endoderm.
例句与用法
1.
This pushing-in of cells marks the start of gastrulation . 细胞的这种向里推进标志着原肠胚形成的开始。
2.
Asymmetrical distribution of cortactin appeared when gastrulation starts , with higher staining in the dorsal part of the embryo , while much lower in the ventral part 在胚盾附近区域，即未来的胚胎背侧，染色信号较强，皮层蛋白标志了正在发生汇聚迁移的细胞。
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