FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term descending neuron of the gnathal ganglion DNg100 ID (Ontology) FBbt:20007473 (Fly Anatomy)
Definition Adult descending neuron with its soma in the gnathal ganglion, ventral to the antennal mechanosensory and motor center (Schlegel et al., 2024; Dorkenwald et al., 2024). It is a putative embryonic-born neuron (Schlegel et al., 2024; Dorkenwald et al., 2024). In the brain, it has postsynapses in the gnathal ganglion, the saddle and the contralateral vest (Schlegel et al., 2024; Dorkenwald et al., 2024). It has presynapses in the gnathal ganglion, and the contralateral wedge, vest and inferior posterior slope (Schlegel et al., 2024; Dorkenwald et al., 2024). In the VNC, it follows the dorsal lateral tract of dorsal cervical fasciculus (Sturner et al., 2024). Its predicted neurotransmitter is acetylcholine (Eckstein et al., 2024). There are approximately 2 of these cells per organism (Schlegel et al., 2024; Dorkenwald et al., 2024; Sturner et al., 2024).[ FlyBase:FBrf0259490 FlyBase:FBrf0260535 FlyBase:FBrf0260546 FlyBase:FBrf0260559 ]
Also Known As "adult BDN2 neuron" ; "adult major bolt protocerebral neuron output descending neuron 2" ; "DNg100" (for all, see Synonyms field below)
Comment Type identified at light level and matched across EM datasets by Sturner et al. (2024). Pre- or post-synapse locations are those with the highest total count of these neurons in FlyWire FAFB. Full name for BDN2 from codex (2025-03-04).
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VFB:FBbt_20007473
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neuron
 |__primary neuron_____________________________
cholinergic neuron                             |
 |__adult cholinergic neuron___________________|
adult neuron                                   |
 |__adult cholinergic neuron___________________|
adult descending neuron                        |
 |__descending neuron of the gnathal ganglion__|
gnathal ganglion neuron                        |
 |__descending neuron of the gnathal ganglion__|
adult CNS neuron                               |
 |__descending neuron of the gnathal ganglion__|
                                               descending neuron of the gnathal ganglion DNg100
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descending neuron of the gnathal ganglion
adult cholinergic neuron
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VFB:FBbt_20007473