卵黄

To investigate the expression of VEGF, KDR and CD34 in human yolk sac at different stages, we applied immunohistochemical staining and light microscope.

为研究胚胎不同时期VEGF、KDR和CD34在人卵黄囊中的表达情况，了解胚胎造血的发育过程和机理。

The larvae are about 5-8 mm long at hatching and have a large yolk sac.

幼虫约5-8毫米长的孵化有一个较大的卵黄囊。

A human yolk sac is used briefly and then vanishes.

人类的卵黄囊用得时间很短，很快就会消失。

By two months, the yolk sac becomes redundant and shrivels away.

两个月的时候，卵黄囊就已经失去了作用，慢慢萎缩变小。

After 24,32 and 48 hrs exposure, resulted in relevant decrease in yolk sac diameter, the formation of blood vessel network, a...

提示氟对卵黄囊结构和功能的损害可能是其对啮齿类动物胚胎毒性作用的重要环节之

Until about three months in the womb, baby sharks feed off a yolk sac.

胚胎发育的前三个月，柠檬鲨宝宝是由一个卵黄囊来提供养分的。

During human and fetal development, yolk sac, fetal liver, spleen and bone marrow give birth to blood cells in turn.

在胚胎与胎儿期，依次由卵黄囊、肝、脾、骨髓完成造血；出生后，骨髓成为主要的造血场所。

When the yolk sac disappeared, it was developed from the embryo to the pre-larva.

胚后发育以卵黄囊的消失为依据，划分为前期仔鱼。

The 44 days of pregnancy, B-shows may see yolk sac, the doctor said that embryos may be too small to see, or it may be bad embryos.

怀宝宝44天了，B超显示卵黄囊似见，医生说可能是胚胎太小看不见，也可能是胚胎不好。

The first hemopoietic organ in embryos was the yolk sac.

发现胚胎期首先出现的造血器官是卵黄囊。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。