FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term intermediate tract of dorsal cervical fasciculus ID (Ontology) FBbt:00047534 (Fly Anatomy)
Definition Intermediate continuation of fibers from the dorsal cervical fascicle into the adult ventral nerve cord (Power, 1948). It runs dorsally through the prothoracic and mesothoracic neuromeres (Power, 1948). Towards the posterior, it becomes subdivided into two separate tracts, with the inner tract turning abruptly medially to form the commissure of fine fibers of the ITD in the mesothoracic neuromere (Power, 1948). The larger, more lateral subdivision splits again more posteriorly, with fibers of the lateral division entering the dorsal metathoracic (haltere) nerve (via the haltere tract) and fibers of the medial division entering the metathoracic anterior intermediate (haltere) commissure (Power, 1948; Court et al., 2020).[ FlyBase:FBrf0007196 FlyBase:FBrf0210897 FlyBase:FBrf0239335 FlyBase:FBrf0246815 ]
Also Known As "intermediate tract of the dorsal cervical fascicle" ; "ITD"
Comment Court et al. (2020) refer to the medial subdivision (ITD-CFF) of this tract as being the new ITD, but do not provide a replacement name for this combined tract.
Links to External Ontologies
VFB:FBbt_00047534
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Spanning Tree (Parents/Children)
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neuron projection bundle
 |__neuron projection bundle of adult ventral nerve cord__
tract                                                     |
 |__fascicle______________________________________________|
                                                          intermediate tract of dorsal cervical fasciculus
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Is a fascicle
neuron projection bundle of adult ventral nerve cord
Part of adult ventral nerve cord
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VFB:FBbt_00047534