FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term embryonic/larval optic stalk ID (Ontology) FBbt:00001931 (Fly Anatomy)
Definition Receptor axons that arise in the eye disc gain access to the developing optic lobe in the supraesophageal hemisphere in the embryonic/larval brain by way of the optic stalk connecting these two structures. The optic stalk is tube-like and provides a funnel through which not only the imaginal receptor axons reach the brain, but also the axons of Bolwig's nerve (Meinertzhagen and Hanson, 1993).[ FlyBase:FBrf0064800 ]
Also Known As "larval optic stalk"
Comment
Links to External Ontologies
VFB:FBbt_00001931
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      59
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       4
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      35
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 Genes Insertions Constructs
 embryonic/larval optic stalk (all annotations which use CV term, excluding "NOT" statements)      61     17      7     39
     embryonic/larval optic stalk | early third instar larval stage       3       --       --       2
     embryonic/larval optic stalk | larval stage       2       --       --       2
     embryonic/larval optic stalk | second instar larval stage       3       --       --       2
     embryonic/larval optic stalk | third instar larval stage      28       --       1     23
Spanning Tree (Parents/Children)
Only view relationship: 
  neuron projection bundle
   |__nerve
       |__embryonic/larval optic stalk  161 rec.
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Is a nerve
Part of larva
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Synonyms
  • "larval optic stalk" EXACT
Secondary IDs
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VFB:FBbt_00001931