notochord
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n. [胚] 脊索
n.
脊索；
英英释义
notochord[ 'nəutəkɔ:d ]
n.a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates
双语例句
用作名词(n.)
Right now the notochord cell between vertebra is added gradually much.
此时椎间的脊索细胞逐渐增多。
When notochord organization is ceaseless and migratory, fiber annulus also increases.
在脊索组织不断迁移时，纤维环亦增大。
权威例句
Notochord repression of endodermal Sonic hedgehog permits pancreas development.Mutations affecting development of the notochord in zebrafish.
HNF-3β is essential for node and notochord formation in mouse development
HNF-3 beta is essential for node and notochord formation in mouse development
Mutations affecting the formation of the notochord in the zebrafish, Danio rerio.
The winged-helix transcription factor HNF-3 beta is required for notochord development in the mouse embryo.
Patterning of mammalian somites by surface ectoderm and notochord: Evidence for sclerotome induction by a hedgehog homolog
Floor plate and motor neuron induction by vhh-1, a vertebrate homolog of hedgehog expressed by the notochord.
Control of cell pattern in the developing nervous system: polarizing activity of the floor plate and notochord
Control of cell pattern in the neural tube: motor neuron induction by diffusible factors from notochord and floor plate
notochord (n.)
1848, coined in English by English anatomist Sir Richard Owen (1804-1892) from chord + comb. form of Greek noton "back," from PIE *not- "buttock, back" (cognates: Latin natis "buttock," sopurce of Italian, Spanish nalga, Old French nache "buttock, butt").
1. Skeleton: they possess an endoskeleton of cartilage, or bone. The characteristic notochord is replaced by intersegmental vertebrae in vertebrates.
骨骼：它们拥有由软骨和硬骨组成的内骨骼。有特征性的脊索被脊椎动物分节的椎骨所代替。
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2. In the development process of pith nucleus, after notochord cell disappears, the growth of pith nucleus basically relies on the hyperplasia of fiber composition.
髓核的发育过程中，当脊索细胞消失后，髓核的生长主要靠纤维成分的增殖。
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3. Any of various small, flattened marine organisms of the subphylum Cephalochordata, structurally similar to the vertebrates but having a notochord rather than a true vertebral column.
蛞蝓鱼类任一种体形较小的头索动物纲的扁平海洋动物，它们在结构上与脊椎动物类似，但只有一个脊索而没有真正的脊椎。
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4. As the notochord inside centrum close, notochord cell from centrum migratory to vertebra clearance.
随着椎体内脊索的闭合，脊索细胞从椎体迁移到椎间隙。
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5. Right now, notochord organization is circled by the compact ministry package that did not have soft ossification cell, and from this and form true fiber link.
此时，脊索组织由未进行软骨化细胞的致密部包绕，并由此而形成真正的纤维环。
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6. Itself of notochord week scabbard still is in the center of centrum of cartilage source sex area, call mucous account.
脊索周鞘本身仍在软骨源性椎体的中心区，称为粘液状条。
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7. Right now notochord cell disappears, pith nucleus becomes a fiber cartilage with soft and less cell gradually.
此时脊索细胞消失，髓核逐渐成为一个软而细胞较少的纤维软骨。
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8. A segmental mass of mesoderm in the vertebrate embryo, occurring in pairs along the notochord and developing into muscles and vertebrae.
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。
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9. When notochord organization is ceaseless and migratory, fiber annulus also increases.
在脊索组织不断迁移时，纤维环亦增大。
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10. It develops anterior to notochord and is separated from itself by the prochordal plate.
基质（分化细胞）在脊索之前发展，并且通过脊索前板基质自身是分离的。
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11. The notochord is straight and caudal fin structures are beginning to form on the ventral side of the notochord .
此时脊索是直的，而且尾鳍的结构开始在脊索的腹侧边上形成。
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12. The soft anatomy of conodont shows some soft tissues including eyes, notochord, nerve cord, myomeres and caudal fin.
英国古生物学家们通过牙形石动物的软体解剖学研究，发现眼睛、脊索、神经索、肌肉组织、尾鳍等软组织；
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13. The determination and differentiation of notochord in Bufo bufo gargarizans embryos in different developmental stage have been systematically studied.
本实验以不同发育时期的中华大蟾蜍胚胎为材料，对其在胚胎发育过程中脊索的决定及分化进行了系统的研究。
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14. We also give the computer simulation method of notochord development in the African frog Xenopus Laevis.
本文还介绍了非洲爪蟾脊索器官形成的计算机仿真方法。
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15. We also give the computer simulation method of notochord development in the African frog Xenopus Laevis.
本文还介绍了非洲爪蟾脊索器官形成的计算机仿真方法。
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16. Any of various small, flattened marine organisms of the subphylum Cephalochordata, structurally similar to the vertebrates but having a notochord rather than a true vertebral column.
蛞蝓鱼类任一种体形较小的头索动物纲的扁平海洋动物，它们在结构上与脊椎动物类似，但只有一个脊索而没有真正的脊椎
-- 来源 -- 英汉 - 短句参考
17. any animal of the phylum Chordata having a notochord or spinal column.
具有脊索动物或脊椎的脊索动物门的动物。
-- 来源 -- 汉英 - 翻译参考
18. comprises true vertebrates and animals having a notochord.
包含真正的脊椎动物和脊索动物。
-- 来源 -- 汉英 - 翻译参考
19. any animal lacking a backbone or notochord; the term is not used as a scientific classification.
缺少脊椎或脊索的动物；该术语不用于科学分类。
-- 来源 -- 汉英 - 翻译参考
20. free-swimming larva of ascidians; they have a tail like a tadpole that contains the notochord.
自由游动的海鞘类幼体；它们有含有脊索的蝌蚪形尾巴。
-- 来源 -- 汉英 - 翻译参考
21. Any of numerous animals belonging to the phylum Chordata, having at some stage of development a dorsal nerve cord, a notochord, and gill slits and including all vertebrates and certain marine animals, such as the lancelets.
脊索动物包括所有的脊椎动物以及如文昌鱼之类的海洋动物的脊索动物门的大量动物中的任一个，在某些生长阶段有背部神经索、背索及鳃裂
-- 来源 -- 英汉 - 短句参考
22. primitive marine animal having a saclike unsegmented body and a urochord (a notochord) conspicuous in the larva.
有囊状不分段形状身体的原始海洋动物，幼虫阶段有明显的脊索。
-- 来源 -- 汉英 - 翻译参考
23. A notochord limited to the caudal region, characteristic of the urochordates.
尾索限于尾部的脊索，有尾索动物的特征
-- 来源 -- 英汉 - 短句参考
24. fishlike animals having a notochord rather than a true spinal column.
有脊索但无真正的脊柱鱼类动物。
-- 来源 -- 汉英 - 翻译参考
25. "Chordate:any of numerous animals belonging to the phylum Chordata, having at some stage of development a dorsal nerve cord, a notochord, and gill slits and including all vertebrates and certain marine animals, such as the lancelets."
脊索动物:包括所有的脊椎动物以及如文昌鱼之类的海洋动物的脊索动物门的大量动物中的任一个,在某些生长阶段有背部神经索、背索及鳃裂.
-- 来源 -- 英汉 - 翻译样例
notochord
