神经胚:神经沟两侧上部向背部中线升起、靠拢并愈合在一起,形成一个中空的管状结构,与此同时,管的顶部细胞脱离外胚层,两侧的外胚层细胞重新融合在一起形成的完整的外胚层。
神经胚(Neurula):胚胎由原肠胚预定外胚层细胞形成中枢神经系统原基即神经管的过程称为神经胚形成(neurulation),而正在进行神经管形成的胚胎称为...
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这是在神经胚形成期,皮肤外胚层从神经外胚层分离不完全所致。
It is the result of incomplete disjunction of the cutaneous ectoderm from neural ectoderm during the process of neurulation.
结果表明,这段期间预定肌节在离体培养条件下分化程度有明显差异,直到神经胚中期几乎所有组织块都分化为肌细胞。
It was found that differentiation of muscle cells from these stages showed evident differences, only till mid-neurula stage all of the explants developed into well differentiated muscle cells.
为研究低氧诱导因子- 1 (HIF - 1)在小鼠胚胎神经胚形成阶段的时空表达规律,探讨HIF - 1在胚胎神经系统发生和发育过程中的作用。
To investigate the spatiotemporal expression of hypoxia-inducible factor-1 (HIF-1) during murine neurulation and explore the role of HIF-1 in the embryonic development of the nervous system.
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