FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term proboscis muscle 3 ID (Ontology) FBbt:00058789 (Fly Anatomy)
Definition Muscle of the proboscis that is attached to the anterior of the haustellum and the anterior of the rostrum and pulls the haustellum into a flexed position when it contracts (McKellar et al., 2020). Two motor neurons target different fibers (lateral or medial) of this muscle (McKellar et al., 2020).[ FlyBase:FBrf0007735 FlyBase:FBrf0193310 FlyBase:FBrf0246028 ]
Also Known As "flexor of labrum" ; "haustellum flexor muscle" ; "proboscis muscle m3"
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  proboscis muscle
   |__rostrum muscle
       |__proboscis muscle 3  3 rec.
           |__proboscis muscle 3 lateral fiber
           |__proboscis muscle 3 medial fiber
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Is a rostrum muscle
Part of proboscis
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