notochord
英 ['nəʊtəˌkɔ:d] 美 ['noʊtəˌkɔd]

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.)

1. Right now the notochord cell between vertebra is added gradually much.
   此时椎间的脊索细胞逐渐增多。
2. 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