FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term mechanosensory neuron of femoral chordotonal organ ID (Ontology) FBbt:00048051 (Fly Anatomy)
Definition Mechanosensory neuron that innervates a scolopidium of a femoral chordotonal organ. Each scolopidium is innervated by two such neurons (Shanbhag et al., 1992; Kuan et al., 2020). There are around 135 per leg and they project through the leg nerve to the ventral nerve cord, with a small minority (3-4) continuing to the brain (Mamiya et al., 2018; Phelps et al., 2021). They are cholinergic proprioceptive sensory neurons (Mamiya et al., 2018; Agrawal et al., 2020).[ FlyBase:FBrf0056378 FlyBase:FBrf0231054 FlyBase:FBrf0237124 FlyBase:FBrf0240598 FlyBase:FBrf0247324 FlyBase:FBrf0247582 FlyBase:FBrf0247998 ]
Also Known As "FeCO" ; "FeCO neuron"
Comment
Links to External Ontologies
VFB:FBbt_00048051
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       5
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       4
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 mechanosensory neuron of femoral chordotonal organ (all annotations which use CV term, excluding "NOT" statements)       6      3      1      9
Spanning Tree (Parents/Children)
Only view relationship: 
thoracic neuron
 |__mechanosensory neuron of leg chordotonal organ__
sensory neuron                                      |
 |__proprioceptive sensory neuron___________________|
cholinergic neuron                                  |
 |__adult cholinergic neuron________________________|
adult neuron                                        |
 |__adult cholinergic neuron________________________|
proprioceptive system neuron                        |
 |__proprioceptive sensory neuron___________________|
adult chordotonal neuron                            |
 |__mechanosensory neuron of leg chordotonal organ__|
                                                    mechanosensory neuron of femoral chordotonal organ  25 rec.
                                                     |__femoral chordotonal claw neuron 2 rec.
                                                     |   |__femoral chordotonal claw extension neuron(+)
                                                     |   |__femoral chordotonal claw flexion neuron(+)
                                                     |   |__mesothoracic femoral chordotonal claw neuron(+)
                                                     |   |__metathoracic femoral chordotonal claw neuron(+)
                                                     |   |__prothoracic femoral chordotonal claw neuron(+)
                                                     |__femoral chordotonal club neuron 2 rec.
                                                     |   |__mesothoracic femoral chordotonal club neuron
                                                     |   |__metathoracic femoral chordotonal club neuron
                                                     |   |__prothoracic femoral chordotonal club neuron
                                                     |__femoral chordotonal hook neuron 2 rec.
                                                     |   |__femoral chordotonal hook extension neuron(+)
                                                     |   |__femoral chordotonal hook flexion neuron(+)
                                                     |   |__mesothoracic femoral chordotonal hook neuron(+)
                                                     |   |__metathoracic femoral chordotonal hook neuron(+)
                                                     |   |__prothoracic femoral chordotonal hook neuron(+)
                                                     |__mechanosensory neuron of mesothoracic femoral chordotonal organ
                                                     |   |__mesothoracic femoral chordotonal claw neuron(+)
                                                     |   |__mesothoracic femoral chordotonal club neuron
                                                     |   |__mesothoracic femoral chordotonal hook neuron(+)
                                                     |__mechanosensory neuron of metathoracic femoral chordotonal organ
                                                     |   |__metathoracic femoral chordotonal claw neuron(+)
                                                     |   |__metathoracic femoral chordotonal club neuron
                                                     |   |__metathoracic femoral chordotonal hook neuron(+)
                                                     |__mechanosensory neuron of prothoracic femoral chordotonal organ
                                                         |__prothoracic femoral chordotonal claw neuron(+)
                                                         |__prothoracic femoral chordotonal club neuron
                                                         |__prothoracic femoral chordotonal hook neuron(+)
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Is a mechanosensory neuron of leg chordotonal organ
proprioceptive sensory neuron
adult cholinergic neuron
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VFB:FBbt_00048051