FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term adult fan-shaped body delta neuron ID (Ontology) FBbt:00003636 (Fly Anatomy)
Definition Adult small-field columnar neuron that connects any two regions of the fan-shaped body and has its arbors mostly restricted to the fan-shaped body (Hanesch et al., 1989; Hulse et al., 2021).[ FlyBase:FBrf0049409 FlyBase:FBrf0212061 FlyBase:FBrf0241389 FlyBase:FBrf0246888 FlyBase:FBrf0254510 ]
Also Known As "pontine fiber" ; "pontine neuron"
Comment Original reference (Hanesch et al., 1989) did not limit the definition to FB neurons, but only FB neurons were described and now 'pontine neuron' is used to refer only to FB neurons (Bayraktar et al., 2010; Andrade et al., 2019). A couple of types have a small amount of arborization outside of the FB, meaning that these are not all strictly intrinsic (Scheffer et al., 2020; Hulse et al., 2021).
Links to External Ontologies
VFB:FBbt_00003636
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
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       3
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 Insertions
 adult fan-shaped body delta neuron (all annotations which use CV term, excluding "NOT" statements)       3
Spanning Tree (Parents/Children)
Only view relationship: 
small field neuron
 |__small field neuron of the central complex__
adult central complex neuron                   |
 |__small field neuron of the central complex__|
 |__fan-shaped body columnar neuron____________|
 |__intrinsic neuron of the central complex____|
adult interneuron                              |
 |__small field neuron of the central complex__|
adult central brain intrinsic neuron           |
 |__intrinsic neuron of the central complex____|
                                               adult fan-shaped body delta neuron  19 rec.
                                                |__adult fan-shaped body horizontal delta neuron 5 rec.
                                                |   |__adult fan-shaped body horizontal delta neuron A
                                                |   |__adult fan-shaped body horizontal delta neuron B 4 rec.
                                                |   |__adult fan-shaped body horizontal delta neuron C
                                                |   |__adult fan-shaped body horizontal delta neuron D
                                                |   |__adult fan-shaped body horizontal delta neuron E
                                                |   |__adult fan-shaped body horizontal delta neuron F
                                                |   |__adult fan-shaped body horizontal delta neuron G
                                                |   |__adult fan-shaped body horizontal delta neuron H
                                                |   |__adult fan-shaped body horizontal delta neuron I
                                                |   |__adult fan-shaped body horizontal delta neuron J
                                                |   |__adult fan-shaped body horizontal delta neuron K
                                                |   |__adult fan-shaped body horizontal delta neuron L
                                                |   |__adult fan-shaped body horizontal delta neuron M
                                                |   |__pontine neuron P1a
                                                |   |__pontine neuron P1b
                                                |__adult fan-shaped body vertical delta neuron 12 rec.
                                                |   |__adult asymmetrical body-fan-shaped body layer 8 neuron 12 rec.
                                                |   |__fan-shaped body neuron 1
                                                |   |__pontine neuron P3
                                                |   |__pontine neuron P4
                                                |__pontine neuron P2 1 rec.
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Is a small field neuron of the central complex
fan-shaped body columnar neuron
intrinsic neuron of the central complex
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VFB:FBbt_00003636