FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult visceral tracheal branch ID (Ontology) FBbt:00003070 (Fly Anatomy)
Definition Adult trachea that branches mainly from the lateral trunks and from the transverse connectives. It tracheates the viscera. One visceral trachea arises between spiracles 2 and 3, one or two between spiracles 3 and 4, one between spiracles 4 and 5, two between spiracles 6 and 7, 0-2 from the fourth transverse connective and one each from the fifth, sixth and seventh transverse connective. Smaller branches arise from the dorsal trunks.[ FlyBase:FBim0000051 FlyBase:FBrf0034081 FlyBase:FBrf0064787 ]
Also Known As "visceral trachea"
Comment There is some variation in the number and position of the visceral trachea, although the basic pattern is retained (Whitten, 1980).
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Records annotated with this term OR any of its CHILD TERMS
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN      11
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       7
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Relevant FlyBase reports
 Alleles Images Constructs
 adult visceral tracheal branch (all annotations which use CV term, excluding "NOT" statements)      11      2      7
     adult visceral tracheal branch | embryonic stage       2       --       --
     adult visceral tracheal branch | embryonic stage 16       2       --       2
     adult visceral tracheal branch | heat sensitive       1       --       --
Spanning Tree (Parents/Children)
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tracheal section
 |__adult tracheal section__
 |__tracheal branch_________|
dorsal ectoderm derivative  |
 |__adult tracheal section__|
                            adult visceral tracheal branch  20 rec.
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Is a adult tracheal section
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