FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term proboscis muscle 1 ID (Ontology) FBbt:00058787 (Fly Anatomy)
Definition Muscle with its origin in the dorso-posterior head capsule and its insertion site in the posterior cuticle of the rostrum, near the posterior end of the apodeme of the rostrum, similar to muscles 2 dorsal and 2 ventral (McKellar et al., 2020). As the three of these contract, they pull the rostrum back into the head cavity (McKellar et al., 2020). It is synapsed by the proboscis muscle 1 motor neuron (McKellar et al., 2020).[ FlyBase:FBrf0007735 FlyBase:FBrf0193310 FlyBase:FBrf0246028 ]
Also Known As "lateral labial adductor muscle" ; "proboscis muscle m1" ; "retractor of rostrum" (for all, see Synonyms field below)
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  proboscis muscle
   |__rostrum muscle
       |__proboscis muscle 1  8 rec.
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