FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term exit glial cell ID (Ontology) FBbt:00001253 (Fly Anatomy)
Definition A surface associated glial cell that is associated with the exit point of a nerve from the central nervous system.
CommentDisambiguation: Some authors consider 'exit glia' to be a distinct class (e.g. see Sepp et al., 2001). However, we follow a more recent system (von Hilchen, 2008) that considers exit glia cells to be a type of peripheral glia. Their nomenclature (ePG1-12) reflects this.
Links to External Ontologies
VFB:FBbt_00001253
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 exit glial cell (all annotations which use CV term, excluding "NOT" statements)
     exit glial cell | ectopic
      --       --
     exit glial cell | embryonic stage 15
      --       --       --
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peripheral nervous system__
glial cell_________________|
                           PNS glial cell
                            |__exit glial cell  60 rec.
                                |__embryonic peripheral glial cell 1 6 rec.
                                |__embryonic peripheral glial cell 2 10 rec.
                                |__embryonic peripheral glial cell 3 12 rec.
                                |__larval exit glial cell 2 rec.
                                    |__posterior exit glial cell
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VFB:FBbt_00001253