FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult thoracic spiracle ID (Ontology) FBbt:00014814 (Fly Anatomy)
Definition A spiracle of the adult thorax. There are 2 pairs of these, in segments T2 and T3. Each has a two lipped external rim that can be closed by the action of an associated spiracular occlusor muscle (FBbt:00013335).[ FlyBase:FBrf0007734 ]
Comment Manning and Krasnow (1993) assign the anterior spiracle to the mesothoracic segment, as we have done here, despite recording its origin as being from tracheoblasts associated with the humeral (dorsal prothoracic) disc.
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 adult thoracic spiracle (all annotations which use CV term, excluding "NOT" statements)       1
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  spiracle
   |__adult spiracle
       |__adult thoracic spiracle  11 rec.
           |__adult anterior thoracic spiracle 8 rec.
           |__adult metathoracic spiracle 7 rec.
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Is a adult spiracle
Part of adult thoracic segment
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