FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term larval anterior large descending DN Tachykinin neuron ID (Ontology) FBbt:00110037 (Fly Anatomy)
Definition Larval neuron that expresses Tachykinin (FBgn0037976), whose cell body is located in the anterior protocerebrum and that innervates the ventral nerve cord. At the third instar larval stage, these neurons also form arborizations at two sites near the midline of the protocerebrum and in the subesophageal ganglion. At the level of the ventral nerve cord, this neuron has one main axon and two additional processes, one longer and one shorter than the main axon. There is one of these neurons per hemisphere (Winther et al., 2003; Siviter et al., 2000).[ FlyBase:FBrf0130087 FlyBase:FBrf0162212 ]
Also Known As "larval anterior large descending neuron DN" ; "larval tachykinin descending neuron"
Comment Tachykinin expression was observed by in situ hybridization and immunostaining. This pair of neurons is present in all larval stages. Based on large size and position relative to other Tk neurons, this is probably the dimmed-expressing dTK/AstB neuron from Park et al. (2008) - FBrf0210278.
Links to External Ontologies
VFB:FBbt_00110037
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
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 larval anterior large descending DN Tachykinin neuron (all annotations which use CV term, excluding "NOT" statements)       1      1
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larval descending neuron
 |__larval descending neuron to VNC_________________________
larval neurosecretory neuron                                |
 |__neurosecretory cell of larval brain_____________________|
 |__larval Tachykinin neuron of the central nervous system__|
neurosecretory cell of brain                                |
 |__neurosecretory cell of larval brain_____________________|
larval peptidergic neuron                                   |
 |__larval Tachykinin neuron of the central nervous system__|
larval CNS neuron                                           |
 |__neurosecretory cell of larval brain_____________________|
 |__larval Tachykinin neuron of the central nervous system__|
tachykinin neuron                                           |
 |__larval Tachykinin neuron of the central nervous system__|
                                                            larval anterior large descending DN Tachykinin neuron  2 rec.
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Is a larval descending neuron to VNC
neurosecretory cell of larval brain
larval Tachykinin neuron of the central nervous system
Part of larval central nervous system
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VFB:FBbt_00110037