外胚层

From these studies, we propose that local antagonism of Wnt activity within the anterior ectoderm is required to establish the telencephalon.

根据这些研究，我们提出，Wnt在前外胚层活动的局部拮抗对建立前脑胞来说是必要的。

In mammals, the primitive ectoderm is an epithelium of polarized cells that differentiates into all embryonic tissues.

事实上，我们的生命开始于一个细胞团，但在24小时内，一些细胞死去，而另一些形成一个空心的细胞球，这就是原始外胚层。

The differentiation and fusion of cells may be therefore the two essential ways for the BMDSCs to change their phenotypes from mesoderm to ectoderm.

细胞转分化和细胞融合有可能是中胚层来源的BMDSCs向神经外胚层细胞变化的两种必要机制。

Under appropriate conditions embryonic stem cells have been shown to differentiate in vitro to multiple cell types of endoderm, mesoderm and ectoderm.

一旦撤除分化抑制因素，或添加适当的诱导剂，ES细胞可分化为内胚层、中胚层和外胚层的多种类型的特化细胞。

BACKGROUND: The basic fibroblast growth factor has the obvious promotion function of multiplication of the mesoderm and nerve ectoderm cells, and has the indirect ossification to the bone marrow-derived mesenchymal stem cells.

背景：碱性成纤维细胞生长因子对来源于中胚层和神经外胚层的细胞具有明显的促进增殖作用，对骨髓间充质干细胞具有间接的成骨作用。

Chd protein is able to dorsalize mesoderm and to neuralize ectoderm in Xenopus gastrula explants at 1 nM.

Chd蛋白质可以使中胚叶背部化，也可以背化1海哩的爪蟾肠胚外植体里面的外胚层。

Between the ectoderm and endoderm is mesoderm, which forms the muscles, reproductive organs, blood vessels and excretory organs.

在外胚层和内胚层之间是中胚层，它形成肌肉、生殖腺、血管和排泄器官。

They are also aiming at the areas, including molecular control of neural differentiation from uncommitted ectoderm, molecular basis for diversity of neurons, molecular basis for fine positional information during early embryogenesis and in vitro differentiation of ES cells into neural tissues etc.

他们还致力于未成熟外胚层神经分化的分子控制；神经元多样性的分子基础；早期胚胎发育阶段，细微的位置信息的分子基础；进入神经组织的ES细胞的微分化等领域的研究。

In addition to a small part of the digestive tract from the ectoderm at both ends, mostly from the endoderm.

除消化管两端一小部分来自外胚层，大部分来自内胚层。

During this stage, the cells group into three layers, the first is the 'ectoderm' which then in turn generates the 'mesoderm' and 'endoderm' layers.

在这一阶段，细胞分化为3层，第一层是"外胚层"，它最终会形成中胚层和内胚层。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。