FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term embryonic head segment ID (Ontology) FBbt:00000157 (Fly Anatomy)
Definition Any head segment of the embryo.[ FlyBase:FBrf0075072 ]
Comment
Links to External Ontologies
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      11
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       2
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       6
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
 embryonic head segment (all annotations which use CV term, excluding "NOT" statements)      11      9      4      2      6
     embryonic head segment | dorsal       3       --       --       --       3
     embryonic head segment | dorsal | heat sensitive       1       --       --       --       1
     embryonic head segment | germline clone       2       --       --       --       --
     embryonic head segment | maternal effect       1       --       --       --       --
Spanning Tree (Parents/Children)
Only view relationship:
segment
 |__head segment_______
 |__embryonic segment__|
                       embryonic head segment  438 rec.
                        |__embryonic gnathal segment 250 rec.
                        |   |__embryonic labial segment 101 rec.
                        |   |__embryonic mandibular segment 95 rec.
                        |   |__embryonic maxillary segment 171 rec.
                        |__embryonic procephalic segment 283 rec.
                            |__embryonic antennal segment 166 rec.
                            |__embryonic intercalary segment 67 rec.
                            |__embryonic labral segment 80 rec.
                            |__embryonic ocular segment 24 rec.
Spanning Tree View Settings
Parents/Children
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Is a head segment
embryonic segment
Part of embryonic head
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Synonyms
Secondary IDs
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UBERON:6000157