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.
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.
牙齿是典型的上皮-间充质器官,由原口腔上皮和其下方的神经嵴来源的外胚间充质相互作用而形成。
Tooth is a typical epithelium-mesenchyme organ, which is formed through the mutual function between the original oral epithelium and epiblastic mesenchyme from the neural crest below.
研究者们在神经板形成前,从“阶段3”的鸡胚种移植了一些细胞,种植在非诱导性培养物中。
The researchers grew grafts of cells from "stage 3" chick embryos, before the neural plate formed, in non-inducing cultures.
结果胚鼠室管膜源性神经干细胞在相应培养条件下呈现出神经干细胞快速增殖,形成由多细胞组成的细胞球(神经球);
Results The NSCs derived from the fetal rat ependyma were observed to rapidly proliferate to form some cellular spheres or neural spheres consisting of NSCs.
结果胚鼠室管膜源性神经干细胞在相应培养条件下呈现出神经干细胞快速增殖,形成由多细胞组成的细胞球(神经球);
Results The NSCs derived from the fetal rat ependyma were observed to rapidly proliferate to form some cellular spheres or neural spheres consisting of NSCs.
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