FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term abdominal ventral bipolar dendrite neuron vbd ID (Ontology) FBbt:00002589 (Fly Anatomy)
Definition Bipolar dendrite neuron with its soma in the ventral sensory cluster of a larval abdominal segment, close to vdaA-D (Orgogozo and Grueber, 2005). It emits two dendritic branches along the anterior posterior axis (Bodmer and Jan, 1987; Orgogozo and Grueber, 2005). It is a proprioceptor neuron (Heckscher et al., 2015). It has strong outputs to the A08e3 local neuron, Jaam2 and A02b (Heckscher et al., 2015; Schneider-Mizell et al., 2016). It is cholinergic (Heckman and Doe, 2022).[ FlyBase:FBrf0047289 FlyBase:FBrf0089570 FlyBase:FBrf0183734 FlyBase:FBrf0229965 FlyBase:FBrf0231328 FlyBase:FBrf0255224 ]
Also Known As "vbp" ; "ventral bipolar dendrite proprioceptor" ; "vmd3"
Comment The number of identified output synapses to Jaam2 was 32/21 (L/R) and to A08e3 was 15/9 (Heckscher et al., 2015). It is still not known if the pattern of connections in A1 is replicated in the other abdominal segments (Heckscher et al., 2015). The number of output synapses in Schneider-Mizell et al. (2016) was the estimated from the publication figures (number in brackets left/right where available; ipsi- and contralateral connections separated by comma): to A02b (15, 8/15, 10).
Links to External Ontologies
VFB:FBbt_00002589
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       3
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       6
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 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 abdominal ventral bipolar dendrite neuron vbd (all annotations which use CV term, excluding "NOT" statements)       3      1      6      1
     abdominal ventral bipolar dendrite neuron vbd | increased number       1       --       --       --
Spanning Tree (Parents/Children)
Only view relationship: 
larval neuron
 |__larval cholinergic neuron_____________________________________
larval segmental nerve sensory neuron                             |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval ventral cluster group multidendritic neuron                |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval abdominal multidendritic neuron                            |
 |__larval abdominal ventral cluster group multidendritic neuron__|
larval abdominal segmental nerve neuron                           |
 |__larval abdominal ventral cluster group multidendritic neuron__|
sensory neuron                                                    |
 |__proprioceptive sensory neuron_________________________________|
multidendritic neuron                                             |
 |__bipolar dendrite neuron_______________________________________|
cholinergic neuron                                                |
 |__larval cholinergic neuron_____________________________________|
larval abdominal nerve sensory neuron                             |
 |__larval abdominal ventral cluster group multidendritic neuron__|
proprioceptive system neuron                                      |
 |__proprioceptive sensory neuron_________________________________|
                                                                  abdominal ventral bipolar dendrite neuron vbd  11 rec.
                                                                   |__abdominal 1 ventral bipolar neuron vbp
                                                                   |__abdominal 2 ventral bipolar neuron vbp
                                                                   |__abdominal 3 ventral bipolar neuron vbp
                                                                   |__abdominal 4 ventral bipolar neuron vbp
                                                                   |__abdominal 5 ventral bipolar neuron vbp
                                                                   |__abdominal 6 ventral bipolar neuron vbp
                                                                   |__abdominal 7 ventral bipolar neuron vbp
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Is a larval abdominal ventral cluster group multidendritic neuron
bipolar dendrite neuron
proprioceptive sensory neuron
larval cholinergic neuron
Develops from ventral group abdominal bipolar dendrite neuron precursor cell
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VFB:FBbt_00002589