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汉语拼音：pēi céng

指构成动物早期胚胎的细胞层。人和高等动物的胚层有三层，即外胚层、中胚层和内胚层。

• These cells are known as endodermal cells.

  这些细胞称为内胚层细胞.

• These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.

  这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层.

• Method: Apply evolution and embryology to set mesoderm theory of chinese channel.

  运用进化和胚胎学方法建立中国经络的中胚层理论,探讨经络的实质.

• They are bilateral symmetrical animals with a triploblastic body plan.

  它们是三胚层体制的两侧对称.

• Fibroblasts are mesenchymal cells, which are derived from the embryonic mesoderm.

  成纤维细胞是来源于胚胎中胚层的间充质细胞.

• It is involved in mesoderm formation and left - right axis determination.

  它与胚胎中胚层的形成以及左右体轴的决定有关.

• Two cell layers ( diploblastic ) separated by a gelatinous mesoglea.

  两层细胞 ( 两胚层 ),中间是凝胶状的中胶层.

• BMP induces differentiation of mesenchymal - type cells into osteoblast cells.

  骨形态发生蛋白(BMP) 为诱导中胚层未分化间充质细胞向成骨细胞方向分化的诱导因子.

• Each layer gives rise to specific tissues embryonic development.

  每个胚层产生特殊的胚胎组织.

• The outer layer a diploblastic animal, such as a jellyfish.

  外层双胚层动物的外层, 如海蜇.

• This suggests germ layer boundaries are less absolute than previously thought.

  这表明胚层之间的界限并不是我们胰腺想想的那样严格.

• The final diagnosis was Congenital Mesoblastic Nephroma.

  最终诊断为先天性中胚层肾瘤.

• Herein we present an adult with mesoblastic nephroma, which shows heterogenous echogenesity in abdominal sonography.

  我们报告一位成年中胚层肾瘤病例.在超音波下显示非均匀性超音波密度.

• Mesoblastic nephroma, also known as fetal mesenchymal hamartoma or leiomyomatous hamartoma, is predominantly seen in infancy.

  中胚层肾瘤, 或者被称为胎儿间叶缺陷瘤或是平滑肌缺陷瘤, 主要发现在幼儿时期.

• These data altogether suggest that Dpr 2 functions to inhibit mesoderm induction mediated by Nodal signaling.

  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.