FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult metathoracic anterior intermediate commissure ID (Ontology) FBbt:00047529 (Fly Anatomy)
Definition Commissure of the anterior metathoracic neuromere that carries fibers from the intermediate tract of the dorsal fascicle and the haltere nerve to the contralateral side of the adult ventral nerve cord (Power, 1948; Court et al., 2020). After crossing the midline, fibers join the contralateral haltere nerve and proceed in their original (anterior or posterior) direction (Power, 1948). It is formed of fibers of hemilineages 7B, 8B and 18B and is the largest commissure of the ventral nerve cord (Court et al., 2020). It is derived from the larval metathoracic anterior intermediate commissure, which segregates into this and a ventral anterior intermediate commissure (Court et al., 2020).[ FlyBase:FBrf0007196 FlyBase:FBrf0210897 FlyBase:FBrf0246815 ]
Also Known As "haltere chiasma" ; "haltere commissure" ; "HC" (for all, see Synonyms field below)
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VFB:FBbt_00047529
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  adult ventral nerve cord commissure
   |__adult anterior intermediate commissure
       |__adult metathoracic anterior intermediate commissure
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Is a adult anterior intermediate commissure
Develops from larval metathoracic anterior intermediate commissure
Part of adult metathoracic neuromere
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VFB:FBbt_00047529