FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term larval intersegmental nerve branch ISNd of A1-7 ID (Ontology) FBbt:00007327 (Fly Anatomy)
Definition A ventral branch of the intersegmental nerve of segments A1-7 that exits the ventral nerve cord through the anterior root of the intersegmental nerve. Its branching point is ventral to that of ISNb. It consists mostly of motorneuron axons whose soma is located in the next anterior segment, which innervate various ventral somatic muscles.[ FlyBase:FBrf0089570 FlyBase:FBrf0099344 FlyBase:FBrf0193012 ]
Also Known As"SNd"
CommentISNd could be considered a branch of ISNb, which is in turn a branch of ISN (Landgraf et al., 1997).
Links to External Ontologies
VFB:FBbt_00007327
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 larval intersegmental nerve branch ISNd of A1-7 (all annotations which use CV term, excluding "NOT" statements)
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larval abdomen
 |__larval abdominal nerve_________________
larval intersegmental nerve                |
 |__larval abdominal intersegmental nerve__|
abdominal nerve                            |
 |__larval abdominal nerve_________________|
larval peripheral nervous system           |
 |__larval abdominal nerve_________________|
larval abdominal segment A1-7              |
 |__larval abdominal intersegmental nerve__|
larval abdominal nerve                     |
 |__larval abdominal intersegmental nerve__|
                                           larval intersegmental nerve branch ISNd of A1-7  30 rec.
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Is a larval abdominal nerve
Part of larval abdominal intersegmental nerve
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VFB:FBbt_00007327