FB2025_05 , released December 11, 2025

CV Term Report

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General Information
Term	circulatory system primordium	ID (Ontology)	FBbt:00005461 (Fly Anatomy)
Definition	Any primordium (FBbt:00005495) that develops into is part of some anatomical entity (FBbt:10000000) that is part of some circulatory system (FBbt:00005057).
Comment
Links to External Ontologies

Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
No relevant records available
Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
No relevant statements available

Spanning Tree (Parents/Children)

  developing material anatomical entity
   |__primordium
       |__circulatory system primordium  360 rec.
           |__aorta primordium 15 rec.
           |__crystal cell primordium 32 rec.
           |__dorsal vessel primordium 161 rec.
           |__embryonic heart anchoring cell primordium 3 rec.
           |__heart primordium 120 rec.
           |__lymph gland primordium 36 rec.
           |__pericardial cell primordium 43 rec.
           |__plasmatocyte primordium 122 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	primordium
Part of
Synonyms & Secondary IDs
Synonyms
	"embryonic/larval circulatory system specific anlage" RELATED
Secondary IDs

External Crossreferences & Linkouts
	UBERON:6005461