FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term transmedullary neuron ID (Ontology) FBbt:00003788 (Fly Anatomy)
Definition An intrinsic columnar neuron of the optic lobe whose cell body lies in the distal cortex of the medulla and that projects through the medulla and optic chiasm into the lobula. All neurons arborize in the lobula and most, but not all, in the medulla (Fischbach and Dittrich, 1989).[ FlyBase:FBrf0049410 FlyBase:FBrf0204652 ]
Also Known As "Tm" ; "Tm neuron"
Comment
Links to External Ontologies
VFB:FBbt_00003788
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       2
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
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
 transmedullary neuron (all annotations which use CV term, excluding "NOT" statements)       2      4      1      1      1     14
     transmedullary neuron | ectopic | somatic clone       2       --       --       --       --       --
Spanning Tree (Parents/Children)
Only view relationship: 
adult optic lobe neuron____________
adult optic lobe columnar neuron___|
adult optic lobe intrinsic neuron__|
                                   optic lobe intrinsic columnar neuron
                                    |__transmedullary neuron  302 rec.
                                        |__adult transmedullary CB3851 neuron 11 rec.
                                        |   |__transmedullary neuron Tm29 11 rec.
                                        |   |__transmedullary neuron Tm39
                                        |__narrow field transmedullary neuron 200 rec.
                                        |   |__transmedullary neuron Tm1 29 rec.
                                        |   |__transmedullary neuron Tm2 36 rec.
                                        |   |__transmedullary neuron Tm3 34 rec.
                                        |   |__transmedullary neuron Tm4 20 rec.
                                        |   |__transmedullary neuron Tm5a 14 rec.
                                        |   |__transmedullary neuron Tm5Y 2 rec.
                                        |   |__transmedullary neuron Tm9(+) 50 rec.
                                        |   |__transmedullary neuron Tm20 45 rec.
                                        |   |__transmedullary Y neuron TmY5 2 rec.
                                        |   |__transmedullary Y neuron TmY5a 13 rec.
                                        |__transmedullary neuron ChaTmnew1 1 rec.
                                        |__transmedullary neuron ChaTmnew2 1 rec.
                                        |__transmedullary neuron ChaTmnew3 1 rec.
                                        |__transmedullary neuron Tm1a
                                        |__transmedullary neuron Tm3-6 4 rec.
                                        |__transmedullary neuron Tm3b 7 rec.
                                        |__transmedullary neuron Tm4a 1 rec.
                                        |__transmedullary neuron Tm5 52 rec.
                                        |   |__transmedullary neuron Tm5a 14 rec.
                                        |   |__transmedullary neuron Tm5b 14 rec.
                                        |   |__transmedullary neuron Tm5c 26 rec.
                                        |__transmedullary neuron Tm6
                                        |__transmedullary neuron Tm10
                                        |__transmedullary neuron Tm13
                                        |__transmedullary neuron Tm14
                                        |__transmedullary neuron Tm15 1 rec.
                                        |__transmedullary neuron Tm18
                                        |__transmedullary neuron Tm19
                                        |__transmedullary neuron Tm21
                                        |__transmedullary neuron Tm22 1 rec.
                                        |__transmedullary neuron Tm23 3 rec.
                                        |__transmedullary neuron Tm25
                                        |__transmedullary neuron Tm27 4 rec.
                                        |__transmedullary neuron Tm37
                                        |__transmedullary neuron vGATTmnew
                                        |__transmedullary neuron vGlutTmnew1 1 rec.
                                        |__transmedullary Y neuron 64 rec.
                                        |   |__adult transmedullary Y neuron TmY17
                                        |   |__adult transmedullary Y neuron TmY19a
                                        |   |__adult transmedullary Y neuron TmY19b
                                        |   |__adult transmedullary Y neuron TmY21
                                        |   |__transmedullary neuron Tm3Y 1 rec.
                                        |   |__transmedullary neuron Tm5Y 2 rec.
                                        |   |__transmedullary Y neuron ChaTmYnew1 1 rec.
                                        |   |__transmedullary Y neuron TmY-ds
                                        |   |__transmedullary Y neuron TmY1 1 rec.
                                        |   |__transmedullary Y neuron TmY2 2 rec.
                                        |   |__transmedullary Y neuron TmY3 9 rec.
                                        |   |__transmedullary Y neuron TmY4 7 rec.
                                        |   |__transmedullary Y neuron TmY5 2 rec.
                                        |   |__transmedullary Y neuron TmY5a 13 rec.
                                        |   |__transmedullary Y neuron TmY6
                                        |   |__transmedullary Y neuron TmY7
                                        |   |__transmedullary Y neuron TmY8 9 rec.
                                        |   |__transmedullary Y neuron TmY9 4 rec.
                                        |   |__transmedullary Y neuron TmY10 6 rec.
                                        |   |__transmedullary Y neuron TmY11 2 rec.
                                        |   |__transmedullary Y neuron TmY12 1 rec.
                                        |   |__transmedullary Y neuron TmY13 2 rec.
                                        |   |__transmedullary Y neuron TmY14 14 rec.
                                        |   |__transmedullary Y neuron TmY15 3 rec.
                                        |   |__transmedullary Y neuron TmY16
                                        |   |__transmedullary Y neuron TmY18
                                        |   |__transmedullary Y neuron TmY20
                                        |   |__transmedullary Y neuron TmY27 3 rec.
                                        |   |__transmedullary Y neuron vGlutTmYnew1(+) 2 rec.
                                        |__wide field transmedullary neuron 40 rec.
                                            |__transmedullary neuron Tm5b 14 rec.
                                            |__transmedullary neuron Tm5c 26 rec.
                                            |__transmedullary neuron Tm7 2 rec.
                                            |__transmedullary neuron Tm8 2 rec.
                                            |__transmedullary neuron Tm11 2 rec.
                                            |__transmedullary neuron Tm12 4 rec.
                                            |__transmedullary neuron Tm16 2 rec.
                                            |__transmedullary neuron Tm17 1 rec.
                                            |__transmedullary neuron Tm24 2 rec.
                                            |__transmedullary neuron Tm26 1 rec.
                                            |__transmedullary neuron Tm28 1 rec.
                                            |__transmedullary neuron Tm30
                                            |__transmedullary neuron Tm31
                                            |__transmedullary neuron Tm32
                                            |__transmedullary neuron Tm33
                                            |__transmedullary neuron Tm34
                                            |__transmedullary neuron Tm35
                                            |__transmedullary neuron TmLM7 1 rec.
                                            |__transmedullary neuron TmLM8 1 rec.
                                            |__transmedullary neuron TmR7 P and Y 1 rec.
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Is a optic lobe intrinsic columnar neuron
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VFB:FBbt_00003788