FB2026_03 , released September 17, 2026
CV Term Report
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Term larval ring gland ID (Ontology) FBbt:00049277 (Fly Anatomy)
Definition A closely associated cluster of three neuroendocrine glands of the late embryo or larva, located anterior to the brain and dorsal to the esophagus (de Velasco et al., 2004). It consists of the corpus cardiacum posteroventrally (closest to the brain), the prothoracic gland laterally (forming most of the ring gland) and the corpus allatum anterodorsally (furthest from the brain) (de Velasco et al., 2004). It is innervated by neurons of the nerve of the corpus cardiacum and the aorta passes through it (de Velasco et al., 2004).[ FlyBase:FBrf0064803 FlyBase:FBrf0179777 FlyBase:FBrf0194938 FlyBase:FBrf0239029 ]
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Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
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 larval ring gland (all annotations which use CV term, excluding "NOT" statements)
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larva
 |__larval endocrine system__
endocrine system             |
 |__larval endocrine system__|
anatomical cluster           |
 |__ring gland_______________|
endocrine system component   |
 |__ring gland_______________|
                             larval ring gland  351 rec.
                              |__larval retrocerebral complex 111 rec.
                              |   |__embryonic/larval corpus allatum(+) 66 rec.
                              |   |__embryonic/larval corpus cardiacum 52 rec.
                              |__prothoracic gland 261 rec.
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Is a ring gland
Part of larval endocrine system
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