NLM Logo

Primitive Streak MeSH Descriptor Data 2024

MeSH Heading
Primitive Streak
Tree Number(s)
Unique ID
RDF Unique Identifier
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.
Previous Indexing
Embryo (1961-2007)
Gastrula (1979-2007)
Public MeSH Note
2008; see GASTRULA 1979-2007
History Note
2008; use GASTRULA 1979-2007
Date Established
Date of Entry
Primitive Streak Preferred
page delivered in 0.145s