卵黄囊
[医] 卵黄囊

词型变化：名词复数形式 : yolk sacs

yolk sac的用法和样例：

例句

用作名词(n.)

The yolk sac is gradually vascularized.卵黄囊逐渐被血管化了。
The dye Trypan Blue has a remarkable biphasic effect on pinocytosis by yolk sal.染料锥虫蓝对卵黄囊的胞饮作用具有明显的双向作用。

【近义词】

vitelline sac卵黄囊
umbilical vesicle脐囊

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