FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term paraesophageal ganglion ID (Ontology) FBbt:00002635 (Fly Anatomy)
Definition Small ganglion of the embryonic/larval stomatogastric nervous system located on the right hand side of the larva, between the two brain hemispheres, behind the supraesophageal commissure. It is elongated, less compact than the hypoesophageal ganglion and occupies a more ventral position, closely attached to the esophageal wall. It contains 10-12 neurons.[ FlyBase:FBrf0078614 FlyBase:FBrf0089570 ]
Also Known As "EG" ; "esophageal ganglion" ; "esophageal ganglion 1" (for all, see Synonyms field below)
Comment
Links to External Ontologies
VFB:FBbt_00002635
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      11
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       4
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
 paraesophageal ganglion (all annotations which use CV term, excluding "NOT" statements)      11      8      3      4
     paraesophageal ganglion | embryonic stage       9       --       --       4
Spanning Tree (Parents/Children)
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multi-tissue structure
 |__ganglion______________________
ectodermal derivative             |
 |__anterior ectoderm derivative__|
                                  paraesophageal ganglion  26 rec.
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Is a ganglion
anterior ectoderm derivative
Develops from rostral vesicle of iSNSP
hypocerebral/paraesophageal ganglion primordium
Part of embryonic/larval stomatogastric nervous system
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Synonyms
Secondary IDs
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VFB:FBbt_00002635