FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term mouth hook ID (Ontology) FBbt:00001846 (Fly Anatomy)
Definition A moveable chitinous structures at the anterior tip of the cephalopharyngeal skeleton of the larva. There is a bilateral pair of these, with one on either side of the atrium. Each mouth hook has three processes: a hooked oral process extending anteriorly, a ventral process, and a dorsal process extending dorso-posteriorly to the median tooth. The mouth hooks develop from the maxillary segment.[ FlyBase:FBrf0007733 ]
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Annotations
Records annotated with this term OR any of its CHILD TERMS
Records annotated with this exact term (annotations to child terms are NOT included)
Data Class Field Records
Alleles (FBal)  PHENOTYPE_MANIFEST_IN     110
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       4
Insertions (FBti)  PHENOTYPE_MANIFEST_IN      11
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      31
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
 Full annotation statements 
Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 mouth hook (all annotations which use CV term, excluding "NOT" statements)     110      1      5     15     34
     mouth hook | ectopic      11       --       --       1      7
     mouth hook | ectopic | embryonic stage | heat sensitive       1       --       --       --       1
     mouth hook | ectopic | heat sensitive       1       --       --       --       1
     mouth hook | first instar larval stage       1       --       --       --       --
     mouth hook | first instar larval stage | increased number       2       --       --       --       --
     mouth hook | germline clone       6       --       --       2       --
     mouth hook | heat sensitive       4       --       --       --       3
     mouth hook | increased number       4       --       --       --       --
     mouth hook | larval stage       5       --       --       1       --
     mouth hook | maternal effect       3       --       --       --       --
     mouth hook | posterior       2       --       --       2       --
     mouth hook | second instar larval stage | increased number       2       --       --       --       --
     mouth hook | third instar larval stage       2       --       --       1       --
Spanning Tree (Parents/Children)
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  acellular anatomical structure
   |__cuticular specialization
       |__mouth hook  165 rec.
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Is a cuticular specialization
Part of cephalopharyngeal skeleton
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Synonyms
  • "mouth hooks" RELATED
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