It is the result of incomplete disjunction of the cutaneous ectoderm from neural ectoderm during the process of neurulation.
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。
2
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.