In the embryo an undifferentiated mesodermal component of an early trunk or tail segment or metamere, derived from paraxial mesoderm.
在胚胎时，一个无法区胚层组一个早、或尾部片段或体节，衍生自轴旁胚层。
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During fetal development, the entire body derives from three layers, called germ layers, the ectoderm, mesoderm, and endoderm.
胎发育过程由三个组成，分别是：、中与内。
This constitutes a defect or absence of the vertebral arches, due to failure of mesoderm to organize over the region of the defect, and it may or may not involve the underlying meninges and neural tissue.
这导致了畸形或缺失，这是由于中不能在缺陷区域处生长；缺失可能影响其下脑脊膜和神经组织。
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划词翻译
详细解释
胚层组
一个早
、或尾部片段或体节，衍生自轴旁
胎发育过程由三个
组成，分别是：
