在纺锤体迁移的过程中，一个无微绒毛但富含微丝的区域形成于其上方皮质区域。至此，卵母细胞的极性形成。
During spindle migration, an area enriched in actin microfilaments and devoid of microvilli begins to form in the cortex overlying the spindle, and prominent cortical polarity develops.
微丝是控制纺锤体旋转的关键因素；
Microfilaments play a crucial role in regulating spindle rotation.
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