FB2026_03 , released September 17, 2026

CV Term Report

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General Information

Term

ventroposterior arm of apodeme of rostrum-haustellum joint

ID (Ontology)

FBbt:00004538 (Fly Anatomy)

Definition

Long and slender ventroposterior arm of the apodeme of the rostrum-haustellum joint (McKellar et al., 2020). Its end is attached to the external cuticle of the rostrum (McKellar et al., 2020).[ FlyBase:FBrf0076448 FlyBase:FBrf0246028 ]

Comment

Links to External Ontologies

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
Alleles (FBal)	PHENOTYPE_MANIFEST_IN
Insertions (FBti)	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	Insertions
ventroposterior arm of apodeme of rostrum-haustellum joint (all annotations which use CV term, excluding "NOT" statements)

Spanning Tree (Parents/Children)

maxillary segment
 |__apodeme of rostrum-haustellum joint__
adult apodeme                            |
 |__apodeme of rostrum-haustellum joint__|
proboscis                                |
 |__apodeme of rostrum-haustellum joint__|
integumentary system                     |
 |__integumentary specialization_________|
anatomical entity                        |
 |__integumentary specialization_________|
                                         ventroposterior arm of apodeme of rostrum-haustellum joint  4 rec.

Spanning Tree View Settings
Parents/Children View Depth	Show hierarchy levels: for parents, for children
Relationships
Is a	integumentary specialization
Part of	apodeme of rostrum-haustellum joint
Synonyms & Secondary IDs
Synonyms
	"ventral arm of lacinia" NARROW
Secondary IDs

External Crossreferences & Linkouts