FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term abdominal 8 ventral acute muscle 1 ID (Ontology) FBbt:00059036 (Fly Anatomy)
Definition The only ventral acute muscle of abdominal segment 8. Is ventral/anterior end is inserted into the A7/8 intersegmental apodeme. Its posterior/dorsal end is inserted near the base of the posterior spiracle, which retracts when this muscle contracts (Campos-Ortega and Hartenstein, 1997).[ FlyBase:FBrf0064793 FlyBase:FBrf0089570 ]
Also Known As "A8 VA1" ; "spiracle retractor muscle a" ; "srma"
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somatic muscle
 |__posterior spiracle retractor muscle______
ventral acute muscle                         |
 |__ventral acute muscle 1___________________|
hypodermal muscle of larval abdomen          |
 |__hypodermal muscle of larval abdominal 8__|
                                             abdominal 8 ventral acute muscle 1  1 rec.
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Is a posterior spiracle retractor muscle
hypodermal muscle of larval abdominal 8
ventral acute muscle 1
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