FB2026_03 , released September 17, 2026
FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term adult heart ID (Ontology) FBbt:00003154 (Fly Anatomy)
Definition The caudal, pulsatile region of the adult dorsal vessel. It extends from the first to the sixth abdominal segment, lying just below the surface of the cuticle, and has four pairs of ostia (Curtis et al., 1999). It is supported along the midline of the body by a series of paired alary muscles, suspensory fibrils and a rudimentary dorsal diaphragm (Miller, 1950). The caudal end is closed and is attached to the 6th abdominal tergite and to the dorsal wall of the rectal sac. The wall of the heart consists of a single muscular layer containing circular striated fibers and scattered lateral nuclei. On the ventral side, an outer layer or longitudinal muscles extends the whole length except for the caudal end.[ FlyBase:FBrf0007735 FlyBase:FBrf0108687 ]
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 adult heart (all annotations which use CV term, excluding "NOT" statements)
     adult heart | adult stage
      --       --
     adult heart | adult stage | RU486 conditional
      --       --
     adult heart | conditional
      --       --       --
     adult heart | heat sensitive
      --       --
     adult heart | male
      --
      --
     adult heart | male limited
      --       --
     adult heart | nutrition conditional
      --       --
     adult heart | P-stage
      --       --       --
     adult heart | progressive
      --       --
     adult heart | progressive | RU486 conditional
      --       --
     adult heart | RU486 conditional
      --       --
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adult circulatory system
 |__adult dorsal vessel_____
dorsal vessel               |
 |__adult dorsal vessel_____|
multicellular structure     |
 |__multi-tissue structure__|
                            adult heart  1887 rec.
                             |__adult heart chamber 48 rec.
                             |   |__adult heart chamber 1(+) 18 rec.
                             |   |__adult heart chamber 2(+) 4 rec.
                             |   |__adult heart chamber 3(+)
                             |   |__adult heart chamber 4(+) 2 rec.
                             |__adult heart muscle cell 150 rec.
                             |   |__adult alary muscle cell(+) 35 rec.
                             |   |__adult contractile cardiomyocyte 3 rec.
                             |   |__adult heart suspensory fibril 1 rec.
                             |   |__adult heart ventral longitudinal muscle cell 49 rec.
                             |__dorsal diaphragm 1 rec.
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Is a multi-tissue structure
Part of adult dorsal vessel
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UBERON:0015230