FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term embryonic/larval heart ID (Ontology) FBbt:00001675 (Fly Anatomy)
Definition The embryonic/larval dorsal vessel from the middle of A4 to its posterior tip. It is broader and has a larger lumen then the aorta. It is separated from the aorta by a single intracardial valve (Lehmacher et al., 2012).[ FlyBase:FBrf0089570 FlyBase:FBrf0187872 FlyBase:FBrf0219200 ]
Also Known As "larval heart"
Comment The larval heart was initially described as being divided in three distinct chambers, with as many valves. However, a recent anatomical and histological study did not confirm this, and reported instead a single chamber, with a single valve separating it from the aorta (Lehmacher et al., 2012).
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     102
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION      11
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      13
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      49
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 embryonic/larval heart (all annotations which use CV term, excluding "NOT" statements)     103     28     24     59
     embryonic/larval heart | ectopic       2       --       --       1
     embryonic/larval heart | embryonic stage      12       --       --       3
     embryonic/larval heart | embryonic stage 14       1       --       --       --
     embryonic/larval heart | embryonic stage 17 | third instar larval stage       1       --       1       --
     embryonic/larval heart | heat sensitive       1       --       --       --
     embryonic/larval heart | larval stage      12       --       --      10
     embryonic/larval heart | maternal effect       1       --       --       --
     embryonic/larval heart | P-stage       6       --       --       7
     embryonic/larval heart | third instar larval stage      20       --       3     12
Spanning Tree (Parents/Children)
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  anatomical structure
   |__multicellular structure
       |__embryonic/larval heart  250 rec.
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Is a multicellular structure
Develops from heart primordium
Part of embryonic/larval dorsal vessel
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Synonyms
  • "larval heart" EXACT
Secondary IDs
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