FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval Ladder neuron ID (Ontology) FBbt:00047202 (Fly Anatomy)
Definition Unpaired larval interneuron with a cell body on the midline of the ventral nerve cord (Jovanic et al., 2016). It projects dorsally, then branches in either direction laterally, before branching further to send dendrites anteriorly and posteriorly (Jovanic et al., 2016). It is GABAergic (Wang et al., 2022). There are six of these neurons per neuromere, consecutively born in the late MNB primary lineage, after the VUM motor neurons (Wang et al., 2022).[ FlyBase:FBrf0233796 FlyBase:FBrf0254149 ]
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VFB:FBbt_00047202
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larval neuron
 |__larval GABAergic neuron__________
interneuron                          |
 |__larval interneuron_______________|
GABAergic neuron                     |
 |__larval GABAergic neuron__________|
larval midline neuron                |
 |__larval medial midline neuron_____|
MNB lineage primary neuron           |
 |__lineage MNB primary interneuron__|
primary interneuron                  |
 |__lineage MNB primary interneuron__|
larval CNS neuron                    |
 |__larval interneuron_______________|
                                     larval Ladder neuron  5 rec.
                                      |__larval Ladder-a neuron 2 rec.
                                      |   |__larval abdominal 1 Ladder-a neuron
                                      |   |__larval metathoracic Ladder-a neuron
                                      |__larval Ladder-b neuron
                                      |   |__larval abdominal 1 Ladder-b neuron
                                      |__larval Ladder-c neuron
                                      |   |__larval abdominal 1 Ladder-c neuron
                                      |__larval Ladder-d neuron 3 rec.
                                      |   |__larval abdominal 1 ladder-d neuron
                                      |   |__larval abdominal 2 ladder-d neuron
                                      |   |__larval abdominal 3 ladder-d neuron
                                      |   |__larval abdominal 4 ladder-d neuron
                                      |   |__larval abdominal 5 ladder-d neuron
                                      |__larval Ladder-e neuron 2 rec.
                                      |   |__larval abdominal 1 ladder-e neuron
                                      |__larval Ladder-f neuron
                                          |__larval abdominal 1 ladder-f neuron
                                          |__larval abdominal 2 ladder-f neuron
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Is a larval interneuron
larval GABAergic neuron
lineage MNB primary interneuron
larval medial midline neuron
Part of larval ventral nerve cord
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VFB:FBbt_00047202