FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term embryonic/larval dorsal vessel ID (Ontology) FBbt:00001673 (Fly Anatomy)
Definition A contractile tube in the embryo/larva that extends from immediately behind the posterior commissure of T1 to the arthrodial membrane of A7, into which it inserts via two caudally directed muscles which connect to lateral apodemes in A8. Throughout its length, its lumen is enclosed by just two cardial cells. This single-cell thick layer of cardial cells is surrounded by a single-cell thick layer of pericardial cells, except in the posterior thorax. In this region, it is surrounded by lymph gland in the anterior thorax where it passes through the ring gland. The whole tube is attached to the anterior region of each abdominal segment boundary by alary muscles.[ FlyBase:FBrf0089570 ]
Also Known As "larval dorsal vessel"
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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      77
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION     112
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       7
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      21
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 dorsal vessel (all annotations which use CV term, excluding "NOT" statements)      78    143    116     32
     embryonic/larval dorsal vessel | embryonic stage      17       --       --       6
     embryonic/larval dorsal vessel | germline clone | maternal effect       1       --       --       --
     embryonic/larval dorsal vessel | heat sensitive       2       --       --       --
     embryonic/larval dorsal vessel | posterior       3       --       2       --
     embryonic/larval dorsal vessel | precursor      13       --       1      4
Spanning Tree (Parents/Children)
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  multicellular structure
   |__dorsal vessel
       |__embryonic/larval dorsal vessel  639 rec.
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Is a dorsal vessel
Part of larval circulatory system
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Synonyms
  • "larval dorsal vessel" EXACT
Secondary IDs
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