FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term initial segment of Malpighian tubule ID (Ontology) FBbt:00005790 (Fly Anatomy)
Definition Distal segment of the Malpighian tubule. It is involved in calcium homeostasis and excretion. The initial segment of the adult is smaller than in the larva.[ FlyBase:FBrf0030988 FlyBase:FBrf0083335 FlyBase:FBrf0128452 FlyBase:FBrf0184042 FlyBase:FBrf0218070 FlyBase:FBrf0222532 ]
Also Known As "distal segment of Malpighian tubule"
Comment
Links to External Ontologies
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
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       4
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Insertions
 initial segment of Malpighian tubule (all annotations which use CV term, excluding "NOT" statements)       4
Spanning Tree (Parents/Children)
Only view relationship:
  epithelial tube
   |__Malpighian tubule segment
       |__initial segment of Malpighian tubule  21 rec.
           |__adult initial segment of Malpighian tubule 16 rec.
           |__embryonic initial segment of Malpighian tubule 1 rec.
           |__embryonic/larval initial segment of Malpighian tubule
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a Malpighian tubule segment
Part of
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts