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Term: shield hypoblast
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: shield
Synonyms: dorsal organizer, organizer, Spemann Mangold organizer, Spemann's organizer
Definition: Embryonic structure that is a local accumulation of cells along the germ ring. The shield marks the dorsal side of the embryo.
Ontology: Anatomy Ontology [ZFA:0000071]
Name: hypoblast
Synonyms: mesendoderm
Definition: The inner of the two layers of the blastoderm that forms during gastrulation and give rise to the definitive mesoderm and endoderm.
Ontology: Anatomy Ontology [ZFA:0000117]