Primitive Streak

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.

Year introduced: 2008

PubMed search builder options

Subheadings:

Restrict to MeSH Major Topic.

Do not include MeSH terms found below this term in the MeSH hierarchy.

Tree Number(s): A16.830

MeSH Unique ID: D054240

Entry Terms:

• Primitive Streaks
• Streak, Primitive
• Streaks, Primitive

Previous Indexing:

• Embryo (1961-2007)
• Gastrula (1979-2007)

All MeSH Categories
Anatomy Category
Embryonic Structures
Primitive Streak