FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term larval metathoracic intersegmental nerve 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
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 Alleles Constructs
 larval metathoracic intersegmental nerve (all annotations which use CV term, excluding "NOT" statements)
     larval metathoracic intersegmental nerve | adult stage | dorsal
      --
     larval metathoracic intersegmental nerve | adult stage | ventral
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metathoracic segment
 |__larval metathoracic segment___
 |__metathoracic nerve____________|
larval thoracic segment           |
 |__larval metathoracic segment___|
nerve                             |
 |__larval intersegmental nerve___|
 |__metathoracic nerve____________|
larval peripheral nervous system  |
 |__larval intersegmental nerve___|
                                  larval metathoracic intersegmental nerve  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