FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term giant fiber coupled neuron 1 ID (Ontology) FBbt:00049597 (Fly Anatomy)
Definition Neuron of the adult ventral nerve cord that is coupled to the giant fiber neuron (GF) via gap junctions (Kennedy and Broadie, 2018). There are two of these neurons per hemisphere with their cell bodies in the anterior mesothoracic neuromere (T2) (Kennedy and Broadie, 2018). It projects medially, interacting with the GF and crossing the midline at the inframedial bridge, then it splits, sending one branch anteriorly and one posteriorly (Kennedy and Broadie, 2018). The anterior process travels halfway up T1, then bends laterally and ventrally to terminate in the anterior corner of T1 (Kennedy and Broadie, 2018). The posterior process splits halfway down T2, sending one branch to terminate in the posterior lateral corner of T2 and another into T3 (Kennedy and Broadie, 2018). All three projections appear to innervate the leg neuropils (Kennedy and Broadie, 2018).[ FlyBase:FBrf0241174 ]
Also Known As "GFC1"
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VFB:FBbt_00049597
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 giant fiber coupled neuron 1 (all annotations which use CV term, excluding "NOT" statements)       1      3
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thoracic neuron
 |__mesothoracic neuron__
adult CNS neuron         |
 |__adult VNC neuron_____|
                         giant fiber coupled neuron 1  4 rec.
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Is a mesothoracic neuron
adult VNC neuron
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VFB:FBbt_00049597