「“ectoderm”」的含义 (noun)
词类(英语单词分类):名词
它用来表示[发育成皮肤、头发和神经系统的人类或动物胚胎细胞]。
中文翻译:【外胚层】
参考:「ectoderm」示例短语列表
“ectoderm”的同义词列表。 让我们按顺序来记住吧!。
ectoderm是一个英语单词,有几个不同的含义。 让我们用例句来解释每个的含义和用法!
It is these three components of the
ectoderm
that will each give rise to a particular set of cells.
外胚层
的这三个组成部分中的每一个都会产生一组不同且特定的细胞。
Generally speaking, the
ectoderm
differentiates to form the nervous system (spine, peripheral nerves and brain), tooth enamel and the epidermis (the outer part of integument).
一般来说,
外胚层
分化形成神经系统(脊柱、周围神经和大脑)、牙釉质和表皮(体被的外部)。
Unlike the matrix of connective tissues that reside below basal lamina and are derived from embryonic mesoderm and neural crest, the IPM is located in a compartment bordered by the apical surfaces of two epithelia that develop from neural
ectoderm
.
结缔组织存在于基底膜下,源自胚胎中胚层和神经束,而 IPM 存在于两端由神经外胚层发育的两个顶端
上皮
包围的隔室中。
The SEAM includes distinct cell lineages from the ocular surface
ectoderm
, lens, neuro-retina, and retinal pigment epithelium. Previous experiments had focused mainly on obtaining one cell type.
传统实验主要集中于获得一种细胞类型,而 SEAM 包含代表眼表面
外胚层
、晶状体、神经视网膜和视网膜色素上皮的不同细胞谱系。
In lampreys and other vertebrates, this organ develops from an embryonic tissue called the
ectoderm
, while previous analyses have suggested that the hagfish adenohypophysis arises from an entirely different embryonic tissue-the endoderm.
不过,盲鳗没有脊椎或晶状体,也有研究报告显示,其他脊椎动物的脑下垂体源自
外胚层
,但盲鳗的脑垂体却源自内胚层*2。
Note 4: Mesoderm In the early animal embryo, a mass of undifferentiated cells gradually separate into three layers:
ectoderm
, mesoderm, and endoderm.
注4:中胚层 动物胚胎在发育早期,大量未分化的细胞逐渐分裂成三层胚层结构:
外胚层
、中胚层和内胚层。
Studies in chicken and mouse have shown that the specification of this placode is the outcome of a pattern of tissue interactions between tissues from at least two of the three embryonic germ layers, mesoderm and
ectoderm
.
使用鸡和小鼠胚胎的研究表明,耳原基是由至少两个胚层(中胚层和
外胚层)
相互作用产生的。
Loss-of-function studies revealed that germ cell specification is the result of an interaction between two signaling axes – one related to proximity to the extraembryonic
ectoderm
(involving the Bmps) and a second that represented posterior epiblast properties, which could be inhibited by an antagonistic signal from the anterior visceral endoderm (via a pathway mediated by Smad2 and FoxH1).
先前的研究表明,胚胎外外胚层释放的信号因子(例如 Bmp4 和 Bmp8b)以及下游信号因子(例如 Smad)对于生殖细胞的形成非常重要。此外,团队负责人 Saito 及其同事发现,Blimp1 和 Prdm14 基因的表达对于决定原始生殖细胞的命运是必要的,并且这些表达发生在胚胎外胚层近端部分(胚胎
外胚层
近端部分)的后部。接触胚胎外外胚层)。很明显,他将受到以下指导:
Conclusion: the tailbone contains the primitive streak and node and those are able to grow and can form three layers, from which the fetus is formed:
Ectoderm
, mesoderm, endoderm.
它们具有生长并形成三层的能力:外胚层、中胚层和内胚层,胎儿
由
内胚层形成。
The team began by determining the optimal conditions for inducing both hypothalamic NE and oral
ectoderm
in the same culture.
因此,他们研究了腹侧神经上皮和口腔
外胚层
可以共存并由人类ES细胞诱导的条件。
Further embryonic analysis confirmed that this gland originates in the hagfish
ectoderm
, as with the shark and lamprey.
结果,我们推翻了
传统
理论,证实盲鳗的脑下垂体是
外胚层
起源的。
The lines were all confirmed to have the ability to differentiate into the three germ layers (
ectoderm
, mesoderm and endoderm; fig.
结果证实,分析的所有细胞系均保留分化为三种细胞
谱系
的能力:外胚层、中胚层和内胚层(图 3)。
This previous work demonstrated that, in both species, the adjacent regions of head mesoderm and neural
ectoderm
(or caudal hindbrain) must communicate and work together to achieve complete development of the otocyst.
在头部,中胚层作用于邻近的
神经外胚层
并诱导耳原基。
This crucial stage of embryogenesis involves dynamic morphological rearrangements that give rise to the three germ layers of the body:
ectoderm
, mesoderm, and endoderm.
原肠胚形成是一种动态的形态发生运动,发生在发育早期,形成
外胚层
、中胚层和内胚层,构成所有身体结构的基础。
The sandwich culture method demonstrates that activin-treated presumptive
ectoderm
can function as a head or trunk-tail organizer, depending on the activin A concentration and preculture period after the activin treatment. result In this study I can induce the tissue which has the position information on the head using the sandwich culture.
关于研究结果 使用三明治培养系统,我们能够诱导出具有头部位置信息的组织。此外,通过将诱导的组织移植到非洲爪蟾幼虫中并进行长时间培养,牙齿-类似的组织被生成、诱导。
Recent advances in the study of mouse germ cell biology by Mitinori Saitou (RIKEN CDB, Japan) and others have made it possible to trace the first events of germ cell determination all the way back to embryonic day 6.25, when germline-specific gene expression becomes detectable in a spatiotemporally organized fashion in the primitive
ectoderm
.
小鼠研究取得了显着进展,有报道称,生殖细胞命运决定在胚胎年龄6.25天时开始在原始
外胚层细胞
中发生,并且生殖细胞中特异表达的基因在空间和时间上是有序的。到过。
听“ ectoderm ”地道发音(发音)!
读法是【ˈek.tə.dɜːm】。 听下面的视频并大声发音【ˈek.tə.dɜːm】。

