卵黄囊
luǎn​huáng​náng

yolk sac

  • created sense approved 卵黄囊/卵黃囊 · luǎn​huáng​náng · yolk sac

    卵黄囊 / 卵黃囊

    luǎn​huáng​náng

    yolk sac

    yolk sac (ectodermal cells attaching fetus to uterus before the development of the placenta)

    在怀孕早期的超声检查中，医生通常会观察卵黄囊的发育情况。

    created sense