FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term anterior ejaculatory duct ID (Ontology) FBbt:00004967 (Fly Anatomy)
Definition Duct that connects the vasa deferentia and accessory glands to the ejaculatory bulb in the male adult genitalia. It is 1.2mm long with an anterior dilated portion with a diameter of 120 micrometers, tapering to a narrow tube of 20 micrometers in diameter which enter the ejaculatory bulb. In the abdomen, it extends dorsally, then curves downward and to the left and loops over the rectum to the right side of segment 5 or 6. The duct wall consists of a single thick layer of epithelial cells lined with a thin chitinous intima surrounded by an inconspicuous outer sheath.[ FlyBase:FBrf0007735 ]
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Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN       1
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       1
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
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 anterior ejaculatory duct (all annotations which use CV term, excluding "NOT" statements)       1      3      5      2
Spanning Tree (Parents/Children)
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epithelium
 |__ejaculatory duct epithelium______
epithelial tube                      |
 |__duct_____________________________|
anatomical entity                    |
 |__male-specific anatomical entity__|
                                     anterior ejaculatory duct  11 rec.
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Is a male-specific anatomical entity
ejaculatory duct epithelium
duct
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