FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term gnathal segment ID (Ontology) FBbt:00000011 (Fly Anatomy)
Definition The head segments that develop posterior to the embryonic/larval mouth.
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       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       2
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 Constructs
 gnathal segment (all annotations which use CV term, excluding "NOT" statements)       3      4      6
Spanning Tree (Parents/Children)
Only view relationship: 
segment__
head_____|
         head segment
          |__gnathal segment  1199 rec.
              |__adult gnathal segment 671 rec.
              |   |__adult gnathal neuromere(+)
              |   |__adult labial segment(+) 407 rec.
              |   |__adult mandibular segment(+)
              |   |__adult maxillary segment(+) 324 rec.
              |__embryonic gnathal segment 250 rec.
              |   |__embryonic gnathal neuromere(+) 11 rec.
              |   |__embryonic labial segment(+) 101 rec.
              |   |__embryonic mandibular segment(+) 95 rec.
              |   |__embryonic maxillary segment(+) 171 rec.
              |__embryonic/larval corpus allatum 66 rec.
              |   |__larval juvenile hormone secreting cell
              |__embryonic/larval corpus cardiacum 52 rec.
              |__gnathal neuroblast
              |   |__labial neuroblast MNB
              |   |__labial neuroblast NB1-1
              |   |__labial neuroblast NB1-2
              |   |__labial neuroblast NB2-1
              |   |__labial neuroblast NB2-2
              |   |__labial neuroblast NB2-5
              |   |__labial neuroblast NB3-1
              |   |__labial neuroblast NB3-2
              |   |__labial neuroblast NB3-3
              |   |__labial neuroblast NB3-4
              |   |__labial neuroblast NB3-5
              |   |__labial neuroblast NB4-1
              |   |__labial neuroblast NB4-2
              |   |__labial neuroblast NB4-3
              |   |__labial neuroblast NB4-4
              |   |__labial neuroblast NB5-1
              |   |__labial neuroblast NB5-2
              |   |__labial neuroblast NB5-3
              |   |__labial neuroblast NB5-4
              |   |__labial neuroblast NB5-6
              |   |__labial neuroblast NB6-1
              |   |__labial neuroblast NB6-2
              |   |__labial neuroblast NB6-4
              |   |__labial neuroblast NB7-1
              |   |__labial neuroblast NB7-2
              |   |__labial neuroblast NB7-3
              |   |__labial neuroblast NB7-4
              |   |__mandibular neuroblast MNB
              |   |__mandibular neuroblast MP2
              |   |__mandibular neuroblast NB2-1
              |   |__mandibular neuroblast NB2-2
              |   |__mandibular neuroblast NB2-5
              |   |__mandibular neuroblast NB3-1
              |   |__mandibular neuroblast NB3-4
              |   |__mandibular neuroblast NB3-5
              |   |__mandibular neuroblast NB4-1
              |   |__mandibular neuroblast NB4-2
              |   |__mandibular neuroblast NB4-3
              |   |__mandibular neuroblast NB4-4
              |   |__mandibular neuroblast NB5-3
              |   |__mandibular neuroblast NB5-6
              |   |__mandibular neuroblast NB6-1
              |   |__mandibular neuroblast NB6-2
              |   |__mandibular neuroblast NB7-1
              |   |__mandibular neuroblast NB7-2
              |   |__mandibular neuroblast NB7-3
              |   |__mandibular neuroblast NB7-4
              |   |__maxillary neuroblast MNB
              |   |__maxillary neuroblast NB1-1
              |   |__maxillary neuroblast NB1-2
              |   |__maxillary neuroblast NB2-1
              |   |__maxillary neuroblast NB2-2
              |   |__maxillary neuroblast NB2-5
              |   |__maxillary neuroblast NB3-1
              |   |__maxillary neuroblast NB3-2
              |   |__maxillary neuroblast NB3-3
              |   |__maxillary neuroblast NB3-4
              |   |__maxillary neuroblast NB3-5
              |   |__maxillary neuroblast NB4-1
              |   |__maxillary neuroblast NB4-2
              |   |__maxillary neuroblast NB4-3
              |   |__maxillary neuroblast NB4-4
              |   |__maxillary neuroblast NB5-1
              |   |__maxillary neuroblast NB5-2
              |   |__maxillary neuroblast NB5-3
              |   |__maxillary neuroblast NB5-6
              |   |__maxillary neuroblast NB6-1
              |   |__maxillary neuroblast NB6-2
              |   |__maxillary neuroblast NB6-4
              |   |__maxillary neuroblast NB7-1
              |   |__maxillary neuroblast NB7-2
              |   |__maxillary neuroblast NB7-3
              |   |__maxillary neuroblast NB7-4
              |__gnathal neuromere 12 rec.
              |   |__adult gnathal neuromere(+)
              |   |__embryonic gnathal neuromere(+) 11 rec.
              |   |__larval gnathal neuromere(+) 1 rec.
              |__labial segment 620 rec.
              |   |__adult labial segment(+) 407 rec.
              |   |__embryonic labial segment(+) 101 rec.
              |   |__hypostomal sclerite 51 rec.
              |   |__labial neuroblast MNB
              |   |__labial neuroblast NB1-1
              |   |__labial neuroblast NB1-2
              |   |__labial neuroblast NB2-1
              |   |__labial neuroblast NB2-2
              |   |__labial neuroblast NB2-5
              |   |__labial neuroblast NB3-1
              |   |__labial neuroblast NB3-2
              |   |__labial neuroblast NB3-3
              |   |__labial neuroblast NB3-4
              |   |__labial neuroblast NB3-5
              |   |__labial neuroblast NB4-1
              |   |__labial neuroblast NB4-2
              |   |__labial neuroblast NB4-3
              |   |__labial neuroblast NB4-4
              |   |__labial neuroblast NB5-1
              |   |__labial neuroblast NB5-2
              |   |__labial neuroblast NB5-3
              |   |__labial neuroblast NB5-4
              |   |__labial neuroblast NB5-6
              |   |__labial neuroblast NB6-1
              |   |__labial neuroblast NB6-2
              |   |__labial neuroblast NB6-4
              |   |__labial neuroblast NB7-1
              |   |__labial neuroblast NB7-2
              |   |__labial neuroblast NB7-3
              |   |__labial neuroblast NB7-4
              |   |__labial segment anterior compartment
              |   |__labial segment posterior compartment
              |   |__labial sensillum(+) 233 rec.
              |   |__larval labial segment(+) 64 rec.
              |__larval gnathal segment 171 rec.
              |   |__larval gnathal neuromere(+) 1 rec.
              |   |__larval labial segment(+) 64 rec.
              |   |__larval mandibular segment(+) 8 rec.
              |   |__larval maxillary segment(+) 114 rec.
              |__mandibular segment 116 rec.
              |   |__adult mandibular segment(+)
              |   |__embryonic mandibular segment(+) 95 rec.
              |   |__larval mandibular segment(+) 8 rec.
              |   |__mandibular neuroblast MNB
              |   |__mandibular neuroblast MP2
              |   |__mandibular neuroblast NB2-1
              |   |__mandibular neuroblast NB2-2
              |   |__mandibular neuroblast NB2-5
              |   |__mandibular neuroblast NB3-1
              |   |__mandibular neuroblast NB3-4
              |   |__mandibular neuroblast NB3-5
              |   |__mandibular neuroblast NB4-1
              |   |__mandibular neuroblast NB4-2
              |   |__mandibular neuroblast NB4-3
              |   |__mandibular neuroblast NB4-4
              |   |__mandibular neuroblast NB5-3
              |   |__mandibular neuroblast NB5-6
              |   |__mandibular neuroblast NB6-1
              |   |__mandibular neuroblast NB6-2
              |   |__mandibular neuroblast NB7-1
              |   |__mandibular neuroblast NB7-2
              |   |__mandibular neuroblast NB7-3
              |   |__mandibular neuroblast NB7-4
              |   |__mandibular segment anterior compartment
              |   |__mandibular segment posterior compartment
              |__maxillary segment 607 rec.
                  |__adult maxillary segment(+) 324 rec.
                  |__apodeme of rostrum-haustellum joint(+) 7 rec.
                  |__embryonic maxillary segment(+) 171 rec.
                  |__larval maxillary segment(+) 114 rec.
                  |__maxillary neuroblast MNB
                  |__maxillary neuroblast NB1-1
                  |__maxillary neuroblast NB1-2
                  |__maxillary neuroblast NB2-1
                  |__maxillary neuroblast NB2-2
                  |__maxillary neuroblast NB2-5
                  |__maxillary neuroblast NB3-1
                  |__maxillary neuroblast NB3-2
                  |__maxillary neuroblast NB3-3
                  |__maxillary neuroblast NB3-4
                  |__maxillary neuroblast NB3-5
                  |__maxillary neuroblast NB4-1
                  |__maxillary neuroblast NB4-2
                  |__maxillary neuroblast NB4-3
                  |__maxillary neuroblast NB4-4
                  |__maxillary neuroblast NB5-1
                  |__maxillary neuroblast NB5-2
                  |__maxillary neuroblast NB5-3
                  |__maxillary neuroblast NB5-6
                  |__maxillary neuroblast NB6-1
                  |__maxillary neuroblast NB6-2
                  |__maxillary neuroblast NB6-4
                  |__maxillary neuroblast NB7-1
                  |__maxillary neuroblast NB7-2
                  |__maxillary neuroblast NB7-3
                  |__maxillary neuroblast NB7-4
                  |__maxillary segment anterior compartment
                  |__maxillary segment posterior compartment
Spanning Tree View Settings
Parents/Children
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Is a head segment
Part of
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Synonyms
  • "postoral segment" RELATED
Secondary IDs
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UBERON:6000011