FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term ventral tp motor neuron ID (Ontology) FBbt:00004072 (Fly Anatomy)
Definition Motor neuron that arborizes in the wing neuropil and innervates tergopleural muscle 2, ipsilaterally (Trimarchi and Schneiderman, 1994). It has a small, roughly spherical soma, located mediolaterally, ventral to the level of the posterior dorsal mesothoracic nerve root (Trimarchi and Schneiderman, 1994). Its axon exits the ventral nerve cord in the anterior dorsal mesothoracic nerve (Trimarchi and Schneiderman, 1994). Within the ventral nerve cord, it extends medially, arborizing in the dorsal medial mesothoracic neuromere and wing neuropil, with some neurites crossing the midline and some reaching the posterior prothoracic neuromere (Trimarchi and Schneiderman, 1994; Ehrhardt et al., 2023). A posteriorly-directed branch innervates the ipsilateral dorsal metathoracic (haltere) nerve root (Trimarchi and Schneiderman, 1994). In the male, it plays a role in many aspects of courtship song generation (O'Sullivan et al., 2018; Ehrhardt et al., 2023).[ FlyBase:FBrf0074636 FlyBase:FBrf0240039 ]
Also Known As "tergopleural 2 motor neuron" ; "tp2 MN" ; "tp2_MN" (for all, see Synonyms field below)
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VFB:FBbt_00004072
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
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 ventral tp motor neuron (all annotations which use CV term, excluding "NOT" statements)       3      1      4
Spanning Tree (Parents/Children)
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thoracic neuron
 |__mesothoracic neuron__________________
flight muscle motor neuron               |
 |__indirect flight muscle motor neuron__|
 |__flight control muscle motor neuron___|
                                         ventral tp motor neuron  8 rec.
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Is a mesothoracic neuron
indirect flight muscle motor neuron
flight control muscle motor neuron
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VFB:FBbt_00004072