FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

prothoracic femoral chordotonal organ

ID (Ontology)

FBbt:00004271 (Fly Anatomy)

Definition

Chordotonal organ of the adult prothoracic femur. There are three chordotonal organs, located in the ventral chamber near the longitudinal septum. There is one large group, on the ventro-medial side, and two smaller ones in the center of the femur. The three groups contain in total 76 scolopidia (Kuan et al., 2020).[ FlyBase:FBrf0056378 FlyBase:FBrf0247324 ]

Comment

Links to External Ontologies

VFB:FBbt_00004271

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Direct annotations: records annotated with this exact term (child terms are NOT included)

Data Class	Field	Direct annotations
Insertions (FBti)	EXPRESSION_STAGE_TISSUE_POSITION

Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records

Full annotation statements	Relevant FlyBase reports
Full annotation statements	Genes	Insertions	Constructs
prothoracic femoral chordotonal organ (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

adult prothoracic segment
 |__adult chordotonal organ of prothoracic segment__
chordotonal organ of prothoracic segment            |
 |__adult chordotonal organ of prothoracic segment__|
femur                                               |
 |__prothoracic femur_______________________________|
 |__femoral chordotonal organ_______________________|
prothoracic leg                                     |
 |__prothoracic femur_______________________________|
adult chordotonal organ                             |
 |__adult chordotonal organ of prothoracic segment__|
chordotonal organ of leg                            |
 |__femoral chordotonal organ_______________________|
                                                    prothoracic femoral chordotonal organ  7 rec.
                                                     |__prothoracic femoral chordotonal organ 1
                                                     |__prothoracic femoral chordotonal organ 2
                                                     |__prothoracic femoral chordotonal organ 3

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	adult chordotonal organ of prothoracic segment femoral chordotonal organ
Part of	prothoracic femur
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	VFB:FBbt_00004271