这个词是什么意思？
A linear band of rapidly proliferating cells that begins near the posterior end of an embryo and grows cranially. Primitive streak is formed during GASTRULATION by the convergent migration of primary ectodermal cells (EPIBLAST). The knot at the tip of the streak is called HENSEN NODE.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D054240 · MeSH 2026。
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