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- mbryonic ectoderm 胚外外胚层
- Any of the blastomeres from which the ectoderm develops. 外裂球任一种发育成外胚层的裂球
- An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage. 原肛肛道胚胎消化道表面的凹陷，发育成直肠的一部分
- Derived from two embryonic germ layers, the ectoderm and the endoderm. Used of lower invertebrates, such as sponges and coelenterates. 双胚层的具有两个胚层（外胚层和内胚层）的。用于低等无脊椎动物，如寄生虫和腔肠动物
- The resulting gastrula consists of an outer ectoderm, an inner endoderm, and a mesoderm layer positioned between them. 最终原肠胚由一个外肠胚，内肠胚，和一个中肠胚构成。
- The primitie mouth, or stomodeum, is a slight depression on the surface of the ectoderm. 原始的口（或口凹）是外胚层表面的一个轻微的凹陷。
- The outer layer of a blastula that gives rise to the ectoderm after gastrulation. 外胚层囊胚的外层，在原肠胚形成之后生后外胚层组织
- An individual having a lean, slightly muscular body build in which tissues derived from the embryonic ectoderm predominate. 瘦型体质者由胚胎胚层发育而成的组织形成的瘦型的、肌肉不发达的人
- That is tosay, TaiYinQi corresponds to Endoblast, ShaoYinQi correspond to Mesoderm, JueYinQi corresponds to Ectoderm. 这就是太阴气与内胚层对应，少阴气与中胚层对应，厥阴气与外胚层对应。
- The remaining larger cells become columnar cells, the primitive ectoderm formation of embryos. 其余较大的细胞就变成柱状细胞，形成胚胎的原始外胚层。
- Derived from two embryonic germ layers, the ectoderm and the endoderm.Used of lower invertebrates, such as sponges and coelenterates. 双胚层的具有两个胚层（外胚层和内胚层）的。用于低等无脊椎动物，如寄生虫和腔肠动物
- An individual having a lean,slightly muscular body build in which tissues derived from the embryonic ectoderm predominate. 瘦型体质者由胚胎胚层发育而成的组织形成的瘦型的、肌肉不发达的人
- Derived from two embryonic germ layers,the ectoderm and the endoderm.Used of lower invertebrates,such as sponges and coelenterates. 双胚层的具有两个胚层(外胚层和内胚层)的。用于低等无脊椎动物，如寄生虫和腔肠动物
- Between the ectoderm and endoderm is mesoderm, which forms the muscles, reproductive organs, blood vessels and excretory organs. 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。
- Bilateral oal thickenings of the surface ectoderm, called nasal placodes, then deelop on each side of the inferior part of the frontonasal prominence. 外胚层表面呈双边卵圆形增厚形成鼻板，然后发展成为额鼻隆起的下半部分。
- 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. 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 phosphatases are weakin the fertilized ovum and morula but increase considerably during blastocystformation and differentiation of ectoderm and endoderm.... 据现在所知,磷酸酶和核蛋白的形成及能的利用有关,所以观察胚胎的磷酸酶的改变和分布对于发生问题当可有进一步的认识。
- They are characterized by their potential to self-renew indefinitely and to differentiate into any of the three germ layers - endoderm, mesoderm and ectoderm. 阐明胚胎干细胞全能性维持以及向各种特定细胞分化的分子机制，不仅有助于我们了解胚胎发育过程，而且将促进胚胎干细胞尽早应用于疾病治疗。
- 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. 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。
- Embryonic stem cells (ESCs) are total potent stem cells, which have properties of prolonged multiple-propagation in vitro, can differentiate into ectoderm, mesoderm and endoderm. 摘要胚胎干细胞是具有在体外无限扩增且可向外、中、内三胚层分化的全能干细胞。
