FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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Term larval ostial cell ID (Ontology) FBbt:00058284 (Fly Anatomy)
Definition Ostial cell of the larval dorsal vessel. There are 12 of these cells per dorsal vessel, forming a total of 3 pairs of ostia, which are located in the posterior dorsal vessel (heart) (Lehmacher et al., 2012). It develops from an embryonic ostial cardioblast (Lehmacher et al., 2012). During metamorphosis, the 8 cells forming the two posterior pairs are hystolized and the 4 cells of the anterior-most pair persist to form the posteriormost adult ostia (Lehmacher et al., 2012).[ FlyBase:FBrf0219200 FlyBase:FBrf0238157 ]
Also Known As "larval functional ostial cell"
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 larval ostial cell (all annotations which use CV term, excluding "NOT" statements)       1
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cardial cell
 |__larval cardial cell__
 |__ostial cell__________|
                         larval ostial cell  1 rec.
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Is a larval cardial cell
ostial cell
Develops from embryonic heart ostial cardioblast
Part of larval ostium
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