The inpocketed vegetal pole cells develop into a sheet of cells which grows upward and eventually encloses a cavity, the archenteron.
内褶的植物极细胞生成一片向上生长的细胞,并最后围成一个腔,即原肠。
英语百科
Polarity in embryogenesis
(重定向自Vegetal pole)
In developmental biology, an embryo is divided into two hemispheres: the animal pole and the vegetal pole within a blastula.
The animal pole consists of small cells that divide rapidly, in contrast with the vegetal pole below it. In some cases, the animal pole is thought to differentiate into the later embryo itself, forming the three primary germ layers and participating in gastrulation.