| 单词 | 胚层 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔body wall〕The portion of an animal body that consists of ectoderm and mesoderm, forms the external body surface, and encloses the body cavity.体壁：动物躯体的一部分，由外胚层和内胚层组成，形成围绕体腔的外部体表美国传统〔delamination〕Embryology The splitting of the blastoderm into two layers of cells to form a gastrula.【胚胎学】 分层，起鳞：指囊胚层分裂两个细胞层，形成一个原肠胚美国传统〔dermatome〕Embryology The part of a mesodermal somite from which the dermis develops.【胚胎学】 生皮节：中胚层体节上生长真皮的部分美国传统〔diploblastic〕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美国传统〔ectoderm〕The outer layer of a diploblastic animal, such as a jellyfish.外层：双胚层动物的外层，如海蜇美国传统〔ectoderm〕The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.外胚层：胚胎最初三层胚层中的最外一层，由此发育成为表皮、神经组织和脊椎动物的感觉器官美国传统〔ectomere〕Any of the blastomeres from which the ectoderm develops.外裂球：任一种发育成外胚层的裂球美国传统〔ectomorph〕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、肌肉不发达的人美国传统〔endomorph〕Physiology An individual characterized by relative prominence of the abdomen and other soft body parts developed from the embryonic endodermal layer.【生理学】 胖型体质者：内胚层体型者，指以相对明显突出的腹部及其它由内胚房发展而来的身体柔软部分均较明显隆起的人美国传统〔endoskeleton〕An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates.骨骼：体内支撑的骨骼，由中胚层而来的，是脊椎动物及某些无脊椎动物所特有的特性美国传统〔entoblast〕Any of the blastomeres of an embryo from which the endoderm develops.内胚层：指任何可生长成内胚层的胚胎分裂球美国传统〔epiblast〕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美国传统〔epidermis〕The outermost layer of cells covering the leaves and young parts of a plant.外胚层：覆盖于植物叶面和萌芽之上的最外一层细胞美国传统〔mesoblast〕The middle germinal layer of an early embryo, consisting of undifferentiated cells destined to become the mesoderm.中胚层：早期胚的中间胚芽层，由最终将发育成中胚层的未分化细胞组成美国传统〔mesomere〕The middle zone of the mesoderm of a chordate vertebrate embryo, from which excretory tissue develops.中胚叶节：脊索类脊椎动物胚胎的中胚层的中间部分，最终会发育成排泄组织美国传统〔mesomorphic〕Anatomy Having or characterized by a robust, muscular body build caused by the predominance of structures developed from the embryonic mesodermal layer.【解剖学】 具有运动型体格的：由胚胎中胚层发育而来，因结构占优势而促成健壮高大的体型的、或以此为特征的美国传统〔myoblast〕An undifferentiated cell in the mesoderm of the vertebrate embryo that is a precursor of a muscle cell.成肌细胞：未分化细胞，在作为肌细胞前体的脊椎动物胚胎的中胚层内美国传统〔neural crest〕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美国传统〔neural plate〕The thickened dorsal plate of ectoderm that differentiates into the neural tube and neural crest.神经板：外胚层的厚脊板，它最终分化成神经管和神经脊美国传统〔otocyst〕The structure formed by invagination of the embryonic ectodermal tissue that develops into the inner ear.听泡，听囊：由于发育入内耳的未成熟胚层组织套叠所形成的结构美国传统〔somatotype〕The structure or build of a person, especially to the extent to which it exhibits the characteristics of an ectomorph, an endomorph, or a mesomorph.体型：人体的结构或体格，尤其指展示其作为外胚层体型者、内胚层体型者或中胚层体型者特征意义而言者美国传统〔somite〕A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.体节：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美国传统〔splanchnopleure〕A layer of embryonic cells formed in vertebrates by association of part of the mesoderm with the endoderm and developing into the wall of the viscera.胚脏壁，脏腑层：通过中胚层和内胚层联结而形成的脊椎动物的胚胎细胞层，并发展成内脏美国传统〔triploblastic〕Having three germ layers. Used of the vertebrate embryo.三重胚的：具有三层原胚层的。用于脊椎动物的胚胎美国传统 |
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