卵黃囊
luǎnhuángnáng
ㄌㄨㄢˇ ㄏㄨㄤˊ ㄋㄤˊ
Simplified 卵黄囊
- 1yolk sac (ectodermal cells attaching fetus to uterus before the development of the placenta)
luǎnhuángnáng
ㄌㄨㄢˇ ㄏㄨㄤˊ ㄋㄤˊ
Simplified 卵黄囊
Keep 卵黃囊 and it comes back until you know it.
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