FB2026_02 , released June 18, 2026
FB2026_02 , released June 18, 2026
CV Term Report
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General Information
Term FBbt:00002142 ID (Ontology) FBbt:00002142 (Fly Anatomy)
Definition Larval intersegmental nerve of the metathoracic segment. Similar to the A1-A7 nerves, it has two roots; an anterior root that is formed by neurons of the anteriorly adjacent neuromere, and a posterior root, that is formed by neurons of the same neuromere as the nerve (Campos-Ortega and Hartenstein, 1997). Proximally it shares a glial sheath with the segmental nerve (Campos-Ortega and Hartenstein, 1997). It receives a branch from the metathoracic lateral sensory cluster (Campos-Ortega and Hartenstein, 1997). Its main trunk continues dorsally and innervates the dorsal sensory cluster and dorsal musculature (Campos-Ortega and Hartenstein, 1997).[ FlyBase:FBrf0089570 ]
Also Known As "metathoracic anterior fascicle"
Comment
Links to External Ontologies
VFB:FBbt_00002142
Annotations
Records annotated with this term OR any of its CHILD TERMS
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Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       8
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       6
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Constructs
 FBbt:00002142 (all annotations which use CV term, excluding "NOT" statements)       8      6
     FBbt:00002142 | FBdv:00005369 | FBcv:0000059       2       --
     FBbt:00002142 | FBdv:00005369 | FBcv:0000070       2       --
Spanning Tree (Parents/Children)
Only view relationship:
FBbt:00000019
 |__FBbt:00001745__
 |__FBbt:00002141__|
FBbt:00001742      |
 |__FBbt:00001745__|
FBbt:00005105      |
 |__FBbt:00001997__|
 |__FBbt:00002141__|
FBbt:00005893      |
 |__FBbt:00001997__|
                   FBbt:00002142  14 rec.
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Is a larval intersegmental nerve
metathoracic nerve
Part of larval metathoracic segment
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Synonyms
  • "ISN" BROAD
    "metathoracic anterior fascicle" EXACT
Secondary IDs
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VFB:FBbt_00002142