Gastrula

The developmental stage that follows BLASTULA or BLASTOCYST. It is characterized by the morphogenetic cell movements including invagination, ingression, and involution. Gastrulation begins with the formation of the PRIMITIVE STREAK, and ends with the formation of three GERM LAYERS, the body plan of the mature organism.

Year introduced: 1980

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Tree Number(s): A16.441

MeSH Unique ID: D005775

Entry Terms:

• Gastrulas
• Blastopore
• Blastopores
• Primitive Gut
• Gut, Primitive
• Guts, Primitive
• Primitive Guts
• Gastrocoele
• Gastrocoeles
• Archenteron
• Archenterons

Previous Indexing:

• specific organism/EM (1966-1979)

All MeSH Categories
Anatomy Category
Embryonic Structures
Gastrula