FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term embryonic/larval foregut ID (Ontology) FBbt:00001862 (Fly Anatomy)
Definition Anterior-most part of the embryonic/larval alimentary canal. It opens anteriorly at the mouth and is composed of the atrium (to which the salivary glands are attached), the pharynx, and the esophagus and part of the proventriculus.[ FlyBase:FBrf0064792 ]
Also Known As"foreintestine" ; "larval foregut"
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 embryonic/larval foregut (all annotations which use CV term, excluding "NOT" statements)
     embryonic/larval foregut | embryonic stage
      --
      --
     embryonic/larval foregut | maternal effect
      --       --
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multi-tissue structure
 |__foregut________________________
ectodermal derivative              |
 |__anterior ectoderm derivative___|
gut                                |
 |__embryonic/larval gut___________|
gut section                        |
 |__foregut________________________|
embryonic/larval alimentary canal  |
 |__embryonic/larval gut___________|
                                   embryonic/larval foregut  721 rec.
                                    |__embryonic/larval dorsal pouch 36 rec.
                                    |   |__anterior pharyngeal organ 4 rec.
                                    |   |__dorsal fold 29 rec.
                                    |   |__inner layer of dorsal pouch
                                    |   |__lateropharyngeal organ 4 rec.
                                    |   |__outer layer of dorsal pouch
                                    |__embryonic/larval esophagus 57 rec.
                                    |   |__embryonic/larval esophageal muscle cell
                                    |__embryonic/larval foregut epithelium
                                    |   |__embryonic/larval proventriculus inner layer
                                    |__embryonic/larval foregut sensillum 9 rec.
                                    |   |__anteroventral group sensillum(+)
                                    |   |__buccal tree
                                    |   |__dorsal pharyngeal sensillum(+) 4 rec.
                                    |   |__laterohypopharyngeal organ 2 rec.
                                    |   |__papilla organ 4 rec.
                                    |   |__posteriolateral sensillum V4
                                    |__embryonic/larval pharynx 237 rec.
                                    |   |__anteroventral group sensillum(+)
                                    |   |__dorsal fold lateral sensillum
                                    |   |__dorsal fold medial sensillum(+)
                                    |   |__dorsal pharyngeal sense organ(+) 14 rec.
                                    |   |__embryonic/larval cibarium 1 rec.
                                    |   |__embryonic/larval epipharynx(+) 1 rec.
                                    |   |__embryonic/larval hypopharynx 4 rec.
                                    |   |__laterohypopharyngeal organ 2 rec.
                                    |   |__pharyngeal bar 4 rec.
                                    |   |__posteriolateral sensillum V4
                                    |   |__posterior pharyngeal sense organ 15 rec.
                                    |__foregut imaginal ring 34 rec.
                                    |   |__embryonic precursor of adult foregut 14 rec.
                                    |__hypopharyngeal lobe 18 rec.
                                    |__larval foregut atrium 238 rec.
                                    |   |__papilla organ 4 rec.
                                    |__larval foregut epithelial cell
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Is a foregut
anterior ectoderm derivative
Develops from embryonic foregut
Part of embryonic/larval gut
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