FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

femur

ID (Ontology)

FBbt:00004644 (Fly Anatomy)

Definition

Large, third most proximal segment of the adult leg. It is located between the trochanter and the tibia.[ FlyBase:FBim0000836 FlyBase:FBrf0007734 ]

Comment

Links to External Ontologies

Annotations

Records annotated with this term OR any of its CHILD TERMS

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Results list data from multiple species. Choose a record type above to open its HitList.

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

Data Class	Field	Direct annotations
Alleles (FBal)	PHENOTYPE_MANIFEST_IN
Insertions (FBti)	EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)	PHENOTYPE_MANIFEST_IN
Constructs (FBtp)	PHENOTYPE_MANIFEST_IN

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	Alleles	Genes	Images	Insertions	Constructs
femur (all annotations which use CV term, excluding "NOT" statements)
femur \| cell non-autonomous \| somatic clone		--	--	--
femur \| distal		--	--	--
femur \| distal \| somatic clone		--	--	--	--
femur \| ectopic \| heat sensitive		--	--	--
femur \| heat sensitive		--	--	--	--
femur \| male limited		--	--		--
femur \| pharate adult stage		--	--	--	--
femur \| proximal		--	--	--	--
femur \| proximal \| somatic clone		--	--	--	--
femur \| pupal stage		--	--		--
femur \| somatic clone		--	--
femur \| somatic clone - Minute background		--	--	--	--

Spanning Tree (Parents/Children)

leg________________
appendage segment__|
                   segment of leg
                    |__femur  272 rec.
                        |__arculum
                        |__femoral campaniform sensillum 3 rec.
                        |   |__mesothoracic femoral campaniform sensillum(+)
                        |   |__metathoracic femoral campaniform sensillum(+)
                        |   |__prothoracic femoral campaniform sensillum(+) 1 rec.
                        |__femoral chordotonal organ 28 rec.
                        |   |__femoral chordotonal organ scolopidium(+) 5 rec.
                        |   |__mesothoracic femoral chordotonal organ(+) 7 rec.
                        |   |__metathoracic femoral chordotonal organ(+) 7 rec.
                        |   |__prothoracic femoral chordotonal organ(+) 7 rec.
                        |   |__scoloparium of femoral chordotonal organ(+)
                        |__mesothoracic femur 29 rec.
                        |   |__mesothoracic femoral bract 8 rec.
                        |   |__mesothoracic femoral campaniform sensillum(+)
                        |   |__mesothoracic femoral chordotonal organ(+) 7 rec.
                        |__metathoracic femur 52 rec.
                        |   |__metathoracic femoral bract 8 rec.
                        |   |__metathoracic femoral campaniform sensillum(+)
                        |   |__metathoracic femoral chordotonal organ(+) 7 rec.
                        |   |__metathoracic femoral yellow bristle
                        |__prothoracic femur 26 rec.
                            |__prothoracic femoral bract 8 rec.
                            |__prothoracic femoral bristle
                            |__prothoracic femoral campaniform sensillum(+) 1 rec.
                            |__prothoracic femoral chordotonal organ(+) 7 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	segment of leg
Develops from	presumptive femur
Part of
Synonyms & Secondary IDs
Synonyms

Secondary IDs

External Crossreferences & Linkouts
	https://www.ento.csiro.au/biology/drosophila/melanogaster.html?femora