FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term transmedullary Y neuron TmY8 ID (Ontology) FBbt:00003826 (Fly Anatomy)
Definition Transmedullary Y wide-field neuron that terminates with bleb-type arborizations in lobula layers 4 and 5, and in lobula plate layers 1 and 3. It displays bleb-type arborizations in medulla layers M6 and M10, and has fine arborizations in medulla layers M1, M2, M4, M5 and M6 (Morante and Desplan, 2008; Fischbach and Dittrich, 1989). It is cholinergic (Konstantinides et al., 2022).[ FlyBase:FBrf0049410 FlyBase:FBrf0204652 FlyBase:FBrf0253187 ]
Also Known As "TmY8"
Comment Pre- versus postsynaptic innervation judged by scoring of terminal morphology from figures in Fischbach and Dittrich (1989) as assessed by FlyBrain Neuron DB.
Links to External Ontologies
VFB:FBbt_00003826
Annotations
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Data Class Field Records
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
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  Insertions
 transmedullary Y neuron TmY8 (all annotations which use CV term, excluding "NOT" statements)       7      2
Spanning Tree (Parents/Children)
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transmedullary neuron
 |__transmedullary Y neuron________________
adult optic lobe columnar neuron           |
 |__optic lobe wide-field columnar neuron__|
cholinergic neuron                         |
 |__adult cholinergic neuron_______________|
adult neuron                               |
 |__adult cholinergic neuron_______________|
secondary neuron                           |
 |__Notch ON hemilineage secondary neuron__|
Notch ON hemilineage neuron                |
 |__Notch ON hemilineage secondary neuron__|
                                           transmedullary Y neuron TmY8  9 rec.
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Is a transmedullary Y neuron
Notch ON hemilineage secondary neuron
adult cholinergic neuron
optic lobe wide-field columnar neuron
Develops from immature transmedullary Y neuron TmY8
Part of
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Synonyms
Secondary IDs
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FlyBrain_NDB:10176
VFB:FBbt_00003826