FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term slow tibial extensor motor neuron ID (Ontology) FBbt:00053065 (Fly Anatomy)
Definition Tibial extensor (levator) motor neuron that has broad dendritic arbors in the ipsilateral leg neuropil, but has a less prominent medially-directed branch compared to the fast tibial extensor (Brierley et al., 2012; Azevedo et al., 2024). It is an early-born secondary neuron of lineage 24 (Brierley et al., 2012). It innervates distal fibers of the tibial levator muscle (Azevedo et al., 2024).[ FlyBase:FBrf0218373 ]
Also Known As "SETi motor neuron"
Comment SETi (MN 29) pictured in Azevedo et al. (2024) judged to correspond lineage 24 secondary tibial levator in Brierley et al. (2012) based on VNC arborization pattern and targeting of distal muscle fibers.
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VFB:FBbt_00053065
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adult neuron
 |__adult glutamatergic neuron__________
secondary neuron                        |
 |__secondary motor neuron______________|
adult motor neuron                      |
 |__secondary motor neuron______________|
NB4-4 lineage neuron                    |
 |__lineage 24 secondary neuron_________|
Notch OFF hemilineage secondary neuron  |
 |__lineage 24 secondary neuron_________|
leg muscle motor neuron                 |
 |__tibial levator muscle motor neuron__|
glutamatergic neuron                    |
 |__adult glutamatergic neuron__________|
                                        slow tibial extensor motor neuron
                                         |__mesothoracic slow tibial extensor motor neuron
                                         |__metathoracic slow tibial extensor motor neuron
                                         |__prothoracic slow tibial extensor motor neuron
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Is a lineage 24 secondary neuron
tibial levator muscle motor neuron
secondary motor neuron
adult glutamatergic neuron
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VFB:FBbt_00053065