Ectoderm

The hatching gland with monolayered cells originates from the ectoderm .

半滑舌鳎的孵化腺为单层细胞腺体，起源于外胚层。

The jaw teeth and pharyngeal teeth are derived from the ectoderm and mesoderm .

南方鲶的颌齿均由外胚层及中胚层分化而成。

Two-dimensional polyacrylamide gel electrophoresis of newt gastrula ectoderm treated by inducing agents

蝾螈原肠胚外胚层诱导处理后蛋白质的双向电泳

Tooth development is the result of the interactions between ectoderm epithelium and mesenchyme from neural crest .

牙齿是由口腔上皮和神经嵴来源的外胚间充质相互作用而形成的。

Electron microscopic studies on apical ectodermal thickening , neighboring ectoderm and underlying mesenchymal cells of mouse limb bud

小白鼠胚胎肢芽尖端增厚外胚层及其邻近普通外胚层的电子显微镜观察

The positive reaction in the ectoderm is stronger than the endoderm in the phase of gastrulae .

原肠胚外胚层阳性反应较内胚层强。

We can see the early signs of ear development Start with the thickening of the outer layer of the embryo , this layer is called the ectoderm .

大家知道，耳朵发育的早期特征，是胚胎外层膜的增厚，这层膜也叫外胚层。

The regulation and differentiation of fragments of the eye vesicle of frog embryo and the action of the presumptive lens ectoderm on regulation

蛙胚眼泡碎片的调整与分化和预定水晶体外胚层在调整中的作用

At the third weekend of human embryonic development , the embryo generates three original germ layers ( entoderm , mesoderm , ectoderm ) .

人类胚胎发育到第3周末，胚胎产生三个原始胚层（内胚层、中胚层和外胚层）。

The outer layer of a blastula that gives rise to the ectoderm after gastrulation . Endosperm , cells disorganize gradually along with embryo development .

外胚层囊胚的外层，在原肠胚形成之后生后外胚层组织随胚的发育和生长，胚乳细胞逐渐解体。

This shows that both the stomodaeum and proctodaeum arise from the ectoderm .

证明了口道和肛道都是由外胚层发育而来。

The localization of ~ ( 125 ) i-mesodermal inducing protein in the presumptive ectoderm cells of Cynops orientalis

~（125）Ⅰ-中胚层诱导蛋白在东方蝾螈外胚层细胞内的定位

The residual cells were able to form teratoma at the injection site , and mature endoderm , mesoderm and ectoderm tissues could be found in teratoma tissues .

残留细胞注射部位形成畸胎瘤，瘤体组织中存在成熟的内胚层、中胚层和外胚层组织。

Gastrulation of vertebrate embryos is the fundamental morphogenetic movement through which the three germ layers form : ectoderm , mesoderm and endoderm .

脊椎动物的原肠运动是一种基本的形态发生运动。脊椎动物通过原肠运动最终形成了三胚层：外胚层，中胚层和内胚层。

Conclusion It is suggested from the present study that the salivary gland tumors may originate from basal cells of intercalary ducts and this cell may closely relate with neural ectoderm .

结论涎腺肿瘤可能起源于涎腺闰管的基底细胞，该基底细胞可能与神经外胚层关系密切。

A complex sheet of embryonic cells in craniate vertebrates , formed by association of part of the mesoderm with the ectoderm and developing as the internal body wall .

颅骨脊椎动物中一层复杂的胚体细胞，由部分中胚层及外胚层联合组成，形成身体内壁。

The part of the ectoderm in a vertebrate embryo that lies on either side of the neural tube and develops into the cranial , spinal , and autonomic ganglia .

神经脊，脊椎动物胚胎外胚层的一部分。位于神经管的两侧，并逐步发展成头颅神经元、脊髓神经元、自主神经系统神经元。

Embryonic stem cells ( ESCs ) have the capacity to self-renew and differentiate into cells of all tissue types ( ectoderm , mesoderm , and endoderm ) .

胚胎干细胞具有自我更新的能力，并且可以分化形成身体的各种组织细胞。

Ectoderm becomes skin and nerves , endoderm becomes the gut and organs such as the liver , pancreas and thymus , and mesoderm becomes muscle , bones and blood .

外胚层形成皮肤和神经系统、内胚层形成内脏器官例如肝脏、胰腺、胸腺，中胚层则形成肌肉、骨骼和血液。

Tooth development is the result of the interactions between ectoderm epithelium and mesenchyme from neural crest , and tooth root development is regulated by the interactions between HERS and its surrounding ectoderm mesenchyme .

牙齿发育是外胚上皮和神经嵴来源的间充质相互作用的结果，而牙根是在HERS和周围外胚间充质的相互作用下形成的。

We discovered that CAM EC on day 8,10 , and 12 after incubation localized beneath the chorionic ectoderm , but with the age growing , EC gradually migrated toward ectoderm from mesenchyme .

发现鸡胚在第8、10、12天胚龄时CAMEC都位于外胚层绒毛膜上皮之下，随胚龄增大，EC逐渐由中胚层移向外胚层。

Germ layer & One of three distinct layers of cells that arise in the inner cell mass , the ectoderm , mesoderm , and endoderm , each of which develops into a distinctly different tissue in the embryo .

胚胎发育到原肠胚时的细胞层，分为内胚层、中胚层、外胚层，各胚层将发育成一定的组织器官。

Objectives : Being able to simultaneously express all genes of germline , endoderm , mesoderm and ectoderm , bone marrow mesenchymal stem Cells ( MSCs ) are considered to have the potential to differentiate to other tissues and cell lines .

目的骨髓间充质干细胞（MesenchymalStemcells，MSCs）能同时表达内胚层、中胚层和外胚层等所有三个胚层的基因，具有向其它细胞和组织多向分化的潜能。

The bottom of the primitive amniotic cavity has differentiated into the ectoderm , about 72 & 90 μ m in diameter . The endoderm of the lower surface of the embryonic knot continues to develop along the inner surface of the trophoblast to the equator .

原羊膜腔底部分化为外胚层，径约72～90μm，胚结腹面的内胚层伸向滋养层内1/2赤道处。

In addition , we can see that these organs and organ , most of mesoderm and endoderm posed , and the autonomic nervous system is regulated by the ectoderm , mesoderm are not all alone as a differentiation , and often is the blend .

另外.我们可以看到，这些脏腑器官，大多由中胚层和内胚层所构成，而受外胚层的自主神经系统所调控，并不都是单独一个胚层所分化，而常是混成的。