FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult prothoracic neuromere ID (Ontology) FBbt:00110174 (Fly Anatomy)
Definition Anteriormost of the four major neuropils that makes up the adult ventral nerve cord (VNC) (Court et al., 2020). It is mostly composed of the somata and projections of central neurons derived from the prothoracic array of neuroblasts and the axonal projections of sensory afferents from the prothoracic legs and prothorax (Court et al., 2020). It is a bilaterally paired neuropil that exists as two more or less spherical masses (Court et al., 2020). Its anterior boundary defines the anterior extent of the VNC (Court et al., 2020). The posterior boundary can be defined by the extent of the primary neurite projections of the central neurons produced by the prothoracic neuroblasts 0, 3, 6, 11, 21, 20/22 and 23 (Court et al., 2020). Dorsal nerves that directly innervate the neuropil of the prothoracic neuromere (dorsal prothoracic nerve, prosternal nerve, prothoracic chordotonal nerve, prothoracic accessory nerve and ventral prothoracic nerve) emerge closely adjacent to each other in the anteriolateral corner of the prothoracic neuromere and sometimes appear to share a common exit point (Court et al., 2020).[ FlyBase:FBrf0246815 ]
Also Known As "adult T1 neuromere" ; "PN" ; "Pro" (for all, see Synonyms field below)
Comment
Links to External Ontologies
VFB:FBbt_00110174
Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       2
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       1
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Relevant FlyBase reports
 Alleles  Insertions Constructs
 adult prothoracic neuromere (all annotations which use CV term, excluding "NOT" statements)       2     14      2      6
     adult prothoracic neuromere | adult stage       2       --       --       1
Spanning Tree (Parents/Children)
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adult neuromere
 |__adult thoracic neuromere__
thoracic neuromere            |
 |__prothoracic neuromere_____|
 |__adult thoracic neuromere__|
                              adult prothoracic neuromere  24 rec.
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Is a prothoracic neuromere
adult thoracic neuromere
Part of adult prothoracic segment
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Synonyms
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VFB:FBbt_00110174