| 单词 | 胚层 |
| 释义 | 〔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〔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〔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〔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〔Weismann〕German biologist who asserted that hereditary characteristics are transmitted by a germinal plasm.魏斯曼，奥古斯特·弗雷德里希·利奥波德：(1834-1914) 德国生物学家。他认为遗传特征是由胚层原生质传递的〔endoderm〕The innermost of the three primary germ layers of an animal embryo, developing into the gastrointestinal tract, the lungs, and associated structures. Also called hypoblast 内胚层：动物胚胎三个原始胚层的最内层发育成胃肠道、肺及其附属衍生结构 也作 hypoblast〔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 |
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