FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term transverse-ptilinal muscle 18b ID (Ontology) FBbt:00058809 (Fly Anatomy)
Definition A large temporary transverse muscle extending horizontally from one side of the ptilinum to the other, above the level of the antenna. It functions as a compressor of the ptilinal membrane after each distension pulsation and to permanently invaginate it after emergence. As with other temporary eclosion muscles, it soon degenerates and is not found in older flies.[ FlyBase:FBrf0007310 FlyBase:FBrf0186027 ]
Also Known As "transverse-ptilinal muscle"
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adult somatic muscle
 |__temporary eclosion muscle__
adult somatic muscle of head   |
 |__adult ptilinal muscle______|
                               transverse-ptilinal muscle 18b  4 rec.
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Is a adult ptilinal muscle
temporary eclosion muscle
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