FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term wing axillary muscle III1 motor neuron ID (Ontology) FBbt:00004069 (Fly Anatomy)
Definition Motor neuron that innervates the muscle of third axillary 54 (III1), ipsilaterally (Trimarchi and Schneiderman, 1994). It has a teardrop-shaped soma, found ventral to the root of the accessory mesothoracic nerve, through which its axon exits the ventral nerve cord, and dorsal to the mesothoracic leg nerve (Trimarchi and Schneiderman, 1994). Within the ventral nerve cord, it has a large branch that forms arbors in the medial mesothoracic neuromere and a branch that projects anteriorly through the lateral mesothoracic neuromere (Trimarchi and Schneiderman, 1994). It remains predominantly ipsilateral, but some fibers may just reach the contralateral hemisphere (Trimarchi and Schneiderman, 1994; Ehrhardt et al., 2023).[ FlyBase:FBrf0074636 ]
Also Known As "III1_MN" ; "III1mn"
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VFB:FBbt_00004069
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 wing axillary muscle III1 motor neuron (all annotations which use CV term, excluding "NOT" statements)       1      2
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thoracic neuron
 |__mesothoracic neuron________________
flight control muscle motor neuron     |
 |__direct flight muscle motor neuron__|
                                       wing axillary muscle III1 motor neuron  3 rec.
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Is a mesothoracic neuron
direct flight muscle motor neuron
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VFB:FBbt_00004069