胚外中胚层在妊娠的第6.5至7.0天之间通过原始条带迁移到推测的卵黄囊。
Extraembryonic mesoderm migrates through primitive streak to the presumptive yolk sac between days 6.5 and 7.0 of gestation.
在中胚层，心脏和循环系统正在形成。
In the center layer (mesoderm), the heart and circulatory system are forming.
在中胚层，心脏和循环系统正在形成。
In the center layer (mesoderm) the heart and circulatory system are forming.
最终诊断为先天性中胚层肾瘤。
成纤维细胞是胚胎中胚层起源的间叶细胞。
Fibroblasts are mesenchymal cells which are derived from the embryonic mesoderm.
中胚叶节脊索类脊椎动物胚胎的中胚层的中间部分，…
The middle zone of the mesoderm of a chordate vertebrate embryo, from which excretory tissue develops.
中胚层产生以后，滋养层细胞由单层扁平变成单层柱状；
After the mesodermblast formation the trophoblast changed from flat cells to cubic cells.
芝麻籽大小的小蝌蚪现在已经分成了三层：外胚层、中胚层和内胚层。
The little tadpole about the size of a sesame seed is now made up of three layers: the ectoderm mesoderm and endoderm.
芝麻籽大小的小蝌蚪现在已经分成了三层：外胚层、中胚层和内胚层。
The little tadpole, about the size of a sesame seed, is now made up of three layers: the ectoderm, mesoderm and endoderm.
真皮的成分除神经外来源于中胚层。神经和黑素细胞一样来源于神经嵴。
The constituents of the dermis are mesodermal in origin except for nerves, which, like melanocytes, derive from the neural crest.
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。
Between the ectoderm and endoderm is mesoderm, which forms the muscles, reproductive organs, blood vessels and excretory organs.
脊椎动物胚胎中胚层中的体节物质，沿脊索成对出现，后生长成肌肉或脊椎。
A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.
随着年龄的增长，男孩体型变化较小，大多属中胚层体型，女孩体型变化较大。
The boy somatotype changed a little, while the girls changed in large extent with age.
中胚层中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、。
The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.
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。
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.
扬子鳄肝脏由早期胚胎前肠门边缘内陷的内胚层上皮和脏壁中胚层组织共同发育形成。
The liver of Alligator sinensis was formed by the endodermal epithelia invigilated from the edge of foregut door and by surrounding mesoderm during early stages of pre-natal development.
我们的这个病例就提供了一例在孕31周诊断的中胚层肾瘤的回声特征并做了简单的讨论。
The present case report explains echographic features of a Mesoblastic Nephroma diagnosed at the 31 weeks of pregnancy and make a brief discussion.
原始生殖细胞来自极细胞，分两团移至胚胎腹部侧背面，被中胚层细胞包裹，形成生殖脊。
Primordial germ cells came from pole cells and moved in two masses to the laterodorsal abdomen of embryo, and then were enveloped by mesoderm to form germinal ridge.
间充质干细胞（MSC）起源于中胚层，主要位于成体骨髓和人胎儿脐血，与造血干细胞共存。
Mesenchymal stem cell (MSC), originating from mesoblast, resides mainly in post-natal bone marrow as well as human umbilical cord blood, and coexists with hematopoietic stem cell (HSC).
这些结果表明，Dpr2在胚胎发育中的正常功能是抑制Nodal信号的中胚层诱导作 用。
These data altogether suggest that Dpr2 functions to inhibit mesoderm induction mediated by Nodal signaling.
在脊椎动物胚胎的早期发育中，多种信号途径对中胚层形成和神经外胚层分化起着重要的调节作用。
Many signaling pathways play important roles in the formation of mesoderm and patterning of the neuroectoderm during early development of vertebrate embryos.
中胚层中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、骨骼、泌尿系统及循环系统。
The middle embryonic germ layer lying between the ectoderm and the endoderm from which connective tissue muscle bone and the urogenital and circulatory systems develop.
果蝇血细胞祖细胞来自于胚胎中胚层细胞，然后再分化为各种血细胞，这一系列分化过程由造血因子所调控。
Blood progenitors which arise from the Drosophila embryonic mesoderm differentiate into various hemocytes, and these processes are controlled by hematopoiesis regulating factors.
当一个生物产生时，胚胎将形成三个胚层外胚层、内胚层和中胚层，然后再由这些胚层形成机体的组织和器官。
When an animal develops, embryos form three cellular or germ layers - ectoderm, endoderm and mesoderm - which then go on to form the body's organs and tissues.
由于脂肪组织与骨髓同为中胚层起源的组织，那么能否从脂肪组织中获得间充质干细胞，而且也具有多分化潜能呢？
Because both fat tissue and bone marrow are tissues originated from mesoderm, so whether MSCs could be obtained from fat tissue as well, which also have multi - lineage differentiation potential?
令人惊讶的是，胚胎中局部区域产生了迁移的神经嵴细胞和他们衍生的细胞型，它们与神经或中胚层组织完全无关。
Surprisingly, restricted regions of the embryo generated both migrating neural crest cells and their derivative cell types, without any interaction with neural or mesodermal tissues.
令人惊讶的是，胚胎中局部区域产生了迁移的神经嵴细胞和他们衍生的细胞型，它们与神经或中胚层组织完全无关。
Surprisingly, restricted regions of the embryo generated both migrating neural crest cells and their derivative cell types, without any interaction with neural or mesodermal tissues.
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