单词vitelline membrane
网络: 卵黄膜；蛋黄膜；层卵黄膜
In the cryostat section, the antigens also appeared at the fourth week, they were localized on vitelline membrane and egg shell.
冰冻切片的抗原也在第四周开始出现，定位在卵黄膜及卵壳上。
Oocyte in the coelom does not have follicle membrane and vitelline membrane is formed and developed by the oocyte itself.
体腔中卵母细胞无滤泡膜，卵黄膜的形成与发育靠卵母细胞本身；