FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term VO4/5 motor neuron ID (Ontology) FBbt:00110285 (Fly Anatomy)
Definition Motor neuron that develops from the neuroblast NB7-1 lineage. It innervates the internal ventral oblique muscles 4 and 5, which are found in larval abdominal segments A1 to A7. Its dendritic arborization occupies the medial domain of the ventral nerve cord neuropil. It exits the ventral nerve cord via the anterior root of the intersegmental nerve, fasciculating with the ISNd nerve branch and it innervates the VO4 and VO5 muscles via intermediate-sized type I boutons (Hoang and Chiba, 2001; Banerjee et al., 2016). These neurons (at least in A1 to A4) die during metamorphosis (Banerjee et al., 2016).[ FlyBase:FBrf0064795 FlyBase:FBrf0099344 FlyBase:FBrf0112030 FlyBase:FBrf0132289 FlyBase:FBrf0160715 FlyBase:FBrf0167986 FlyBase:FBrf0174847 FlyBase:FBrf0208790 FlyBase:FBrf0234013 ]
Also Known As "MN-VO4/5 neuron" ; "MN15/16-I"
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VFB:FBbt_00110285
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
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 Insertions
 VO4/5 motor neuron (all annotations which use CV term, excluding "NOT" statements)       1
Spanning Tree (Parents/Children)
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motor neuron
 |__type Ib motor neuron______________________________
embryonic/larval motor neuron                         |
 |__abdominal segment motor neuron____________________|
 |__larval internal muscle motor neuron_______________|
NB7-1 lineage primary neuron                          |
 |__lineage NB7-1 primary motor neuron________________|
primary motor neuron                                  |
 |__lineage NB7-1 primary motor neuron________________|
larval A1-7-innervating ISN motor neuron              |
 |__larval ventral A1-7-innervating ISN motor neuron__|
                                                      VO4/5 motor neuron  1 rec.
                                                       |__larval VO4/5 motor neuron of abdominal 1 neuromere
                                                       |__larval VO4/5 motor neuron of abdominal 2 neuromere
                                                       |__larval VO4/5 motor neuron of abdominal 3 neuromere
                                                       |__larval VO4/5 motor neuron of abdominal 4 neuromere
                                                       |__larval VO4/5 motor neuron of abdominal 5 neuromere
                                                       |__larval VO4/5 motor neuron of abdominal 6 neuromere
                                                       |__larval VO4/5 motor neuron of metathoracic neuromere
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Is a lineage NB7-1 primary motor neuron
abdominal segment motor neuron
type Ib motor neuron
larval internal muscle motor neuron
larval ventral A1-7-innervating ISN motor neuron
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VFB:FBbt_00110285