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Embryonic Structures > Primitive Streak

Preferred term

Primitive Streak  

Type

  • Topical Descriptor

Broader concept

Scope note

  • 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.

History note

  • 2008; use GASTRULA 1979-2007

In other languages

URI

http://www.yso.fi/onto/mesh/D054240

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