胚层

Furthormore, xNorrin can not activate canonical Wnt signaling in the endomesoderm, suggesting additional mechanisms to restrict xNorrin activity in the ectoderm besides of its RNA localization in the animal pole..

进一步的体内实验表明，xNorrin协同xFrizzled4及xLrp5/6只能在外胚层激活经典Wnt信号通路，而在内中胚层中这种活性则很低，提示除了其RNA定位在动物极细胞之外，还存在着另外一种分子机制将xNorrin的活性限制在背部外胚层。

Before 30 years old, the mean somatotype of male mainly belonged to balanced mesomorphy category, afterwards that of male turned i...

女性随年龄增长内中因子值增加，外因子值下降，体型愈来愈偏内胚层体型。

Planaria is the most simple in three blastoderm animal, its nerve system is ladder-like.This is the bio- evolution of the nerve system.

三胚层动物扁形动物涡虫的神经元连接成梯形神经系，有原始的脑和两条神经索，反映了原始生命反射功能的进化和演变。

Hydra is two blastoderm animal, its nerve system is network-like.

两胚层腔肠动物水螅的神经元连接成网状神经系。

Ontogenesis begins from the fertilized embryo. After the cells proliferation during the embryo cleavage, it enters the stage of blastoderm differentiation、 tissue and organ formation.

个体发育从受精卵开始，经过卵裂阶段的细胞增殖后，进入到胚层分化、组织和器官形成阶段。

LITERATURE EVALUATION: The 32 literatures are about ESCs transcription regulation, the role of FoxD3 for embryonic development and maintaining the pluripotency of ESCs and the function of FoxD3 in other cells （myeloid cells, nervous crest cells and chromatophore cells）.

FoxD3是叉头框（Forkheadbox，Fox）家族中的一个转录调控因子，它对胚胎上胚层及其衍生物的形成和建立多潜能胚胎干细胞系具有重要作用，并与控制胚胎发育和胚胎干细胞多能性的其他转录调控因子有一定的联系。

①At the 8 weeks of fetalage, the ciliated, small mucous granule cells and rare basal cells were all differentiated from endoderm cubic cells, which was 3 weeks earlier than Gaillard's report.

①人胚胎8周时，内胚层细胞已分化出气管上皮的纤毛细胞、小粘液颗粒细胞、基底细胞很少，该结果比过去Gaillard等的报告提前3周。

The syndrome seems to result from disturbances of the caudal mesoderm before the fourth week of gestation. This includes the caudal cell mass and the cloaca, what explains the associated anomalies of the genitourinary tract (24%) and lower gastrointestinal tract.

本病是妊娠第4周之前尾部中胚层的紊乱所致，包括马尾细胞团和泄殖孔，这解释有24％的病例伴有泌尿生殖道畸形和下胃肠道畸形。

Coelenterate a class-specific cells located in between the mesodermal cells in the tentacles on the more.

腔肠动物特有的一类细胞，分布于胚层细胞之间，在触手上更多。

At E8.5, Shh mRNA expression was restricted to diencephalon and pharyngeal endoderm.

在E8.5天，Shh表达仅限于脑和咽部内胚层。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。