FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term tracheal branch ID (Ontology) FBbt:00052127 (Fly Anatomy)
Definition Tubular region of the tracheal system composed of an epithelial monolayer wrapped around a central lumen (Ribeiro et al., 2004).[ FlyBase:FBrf0183816 ]
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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       3
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN       3
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 Constructs
 tracheal branch (all annotations which use CV term, excluding "NOT" statements)       3      3
     tracheal branch | decreased number | third instar larval stage       2      2
     tracheal branch | third instar larval stage       3      3
Spanning Tree (Parents/Children)
Only view relationship: 
  epithelial tube
   |__tracheal section
       |__tracheal branch  936 rec.
           |__adult abdominal superficial tracheal branch 9 rec.
           |   |__adult dorsal superficial tracheal branch(+) 7 rec.
           |   |__adult ventral superficial tracheal branch(+)
           |__adult cibarial muscle tracheal branch 1 rec.
           |__adult dorsal tracheal branch 9 rec.
           |   |__adult abdominal dorsal tracheal branch(+) 2 rec.
           |   |__adult metathoracic dorsal tracheal branch 2 rec.
           |   |__adult prothoracic dorsal tracheal branch 2 rec.
           |__adult ganglionic tracheal branch
           |   |__adult ganglionic tracheal branch 0
           |   |__adult ganglionic tracheal branch 1
           |   |__adult ganglionic tracheal branch 2
           |__adult haltere tracheal branch
           |__adult labial tracheal branch 4 rec.
           |__adult leg tracheal branch 3 rec.
           |   |__mesothoracic leg tracheal branch
           |   |__metathoracic leg tracheal branch 1 rec.
           |   |__prothoracic leg tracheal branch 2 rec.
           |__adult maxillary palp tracheal branch 2 rec.
           |__adult mediosternal tracheal branch 2 rec.
           |__adult spiracular tracheal branch 1 rec.
           |   |__adult abdominal spiracular tracheal branch(+) 1 rec.
           |   |__adult spiracular tracheal branch 1
           |   |__adult spiracular tracheal branch 2
           |__adult tracheal dorsal trunk 5 rec.
           |__adult tracheal lateral trunk 4 rec.
           |__adult tracheal transverse connective 3 rec.
           |   |__adult tracheal transverse connective 1
           |   |__adult tracheal transverse connective 2
           |   |__adult tracheal transverse connective 3
           |   |__adult tracheal transverse connective 4 2 rec.
           |   |__adult tracheal transverse connective 5
           |   |__adult tracheal transverse connective 6
           |   |__adult tracheal transverse connective 7
           |__adult visceral tracheal branch 20 rec.
           |__adult wing tracheal branch
           |__embryonic/larval spiracular tracheal branch 13 rec.
           |   |__embryonic/larval spiracular tracheal branch 1
           |   |__embryonic/larval spiracular tracheal branch 2
           |   |__embryonic/larval spiracular tracheal branch 3
           |   |__embryonic/larval spiracular tracheal branch 4
           |   |__embryonic/larval spiracular tracheal branch 5
           |   |__embryonic/larval spiracular tracheal branch 6
           |   |__embryonic/larval spiracular tracheal branch 7
           |   |__embryonic/larval spiracular tracheal branch 8
           |   |__embryonic/larval spiracular tracheal branch 9
           |   |__embryonic/larval spiracular tracheal branch 10 2 rec.
           |__larval tracheal branch of Tr1 32 rec.
           |   |__cephalic tracheal branch(+) 2 rec.
           |   |__cerebral tracheal branch 9 rec.
           |   |__cerebropharyngeal tracheal branch 2 rec.
           |   |__embryonic/larval dorsal tracheal branch 1 8 rec.
           |   |__embryonic/larval ganglionic tracheal branch 1 20 rec.
           |   |__embryonic/larval spiracular tracheal branch 1
           |   |__embryonic/larval tracheal transverse connective 1
           |   |__larval dorsal group tracheal branch 1
           |   |__larval fat body tracheal branch 1
           |   |__pharyngeal tracheal branch 2 rec.
           |__larval tracheal branch of Tr10 8 rec.
           |   |__caudal tracheal branch
           |   |__caudal-hindgut tracheal branch
           |   |__embryonic/larval dorsal tracheal branch 10 7 rec.
           |   |__embryonic/larval spiracular tracheal branch 10 2 rec.
           |   |__embryonic/larval tracheal transverse connective 10
           |   |__hindgut tracheal branch
           |   |__larval dorsal group tracheal branch 10
           |   |__larval fat body tracheal branch 10
           |   |__larval lateral E tracheal branch 10
           |   |__larval lateral F tracheal branch 10
           |   |__larval lateral G tracheal branch 10
           |   |__larval lateral H tracheal branch 10
           |   |__lateroposterior tracheal branch
           |__non-functional spiracular tracheal branch
           |   |__embryonic/larval spiracular tracheal branch 2
           |   |__embryonic/larval spiracular tracheal branch 3
           |   |__embryonic/larval spiracular tracheal branch 4
           |   |__embryonic/larval spiracular tracheal branch 5
           |   |__embryonic/larval spiracular tracheal branch 6
           |   |__embryonic/larval spiracular tracheal branch 7
           |   |__embryonic/larval spiracular tracheal branch 8
           |   |__embryonic/larval spiracular tracheal branch 9
           |__primary segmental tracheal branch 1 rec.
           |__primary tracheal branch 877 rec.
           |   |__caudal tracheal branch
           |   |__caudal-hindgut tracheal branch
           |   |__cephalic tracheal branch(+) 2 rec.
           |   |__cerebral tracheal branch 9 rec.
           |   |__cerebropharyngeal tracheal branch 2 rec.
           |   |__embryonic/larval dorsal tracheal branch(+) 264 rec.
           |   |__embryonic/larval fat body tracheal branch(+) 1 rec.
           |   |__embryonic/larval ganglionic tracheal branch(+) 131 rec.
           |   |__embryonic/larval tracheal dorsal trunk 591 rec.
           |   |__embryonic/larval tracheal lateral trunk 62 rec.
           |   |__embryonic/larval tracheal transverse connective(+) 54 rec.
           |   |__embryonic/larval visceral tracheal branch(+) 93 rec.
           |   |__hindgut tracheal branch
           |   |__pharyngeal tracheal branch 2 rec.
           |__pupal abdominal tracheal branch 15 rec.
           |__pupal cerebral tracheal branch
           |__pupal cerebropharyngeal tracheal branch
           |__pupal dorsal tracheal branch
           |   |__pupal dorsal tracheal branch 1
           |   |__pupal dorsal tracheal branch 2
           |   |__pupal dorsal tracheal branch 3
           |   |__pupal dorsal tracheal branch 4
           |   |__pupal dorsal tracheal branch 5
           |__pupal ganglionic tracheal branch
           |   |__pupal ganglionic tracheal branch 0
           |   |__pupal ganglionic tracheal branch 1
           |   |__pupal ganglionic tracheal branch 2
           |__pupal haltere tracheal branch
           |__pupal leg tracheal branch 1 rec.
           |   |__pupal mesothoracic leg tracheal branch
           |   |__pupal metathoracic leg tracheal branch
           |   |__pupal prothoracic leg tracheal branch
           |__pupal pharyngeal tracheal branch
           |__pupal spiracular tracheal branch
           |   |__pupal spiracular tracheal branch 1
           |   |__pupal spiracular tracheal branch 2
           |   |__pupal spiracular tracheal branch 3
           |   |__pupal spiracular tracheal branch 4
           |   |__pupal spiracular tracheal branch 5
           |__pupal tracheal dorsal trunk 9 rec.
           |__pupal tracheal lateral trunk 3 rec.
           |__pupal tracheal transverse connective 1 rec.
           |   |__pupal tracheal transverse connective 1
           |   |__pupal tracheal transverse connective 2
           |   |__pupal tracheal transverse connective 3
           |   |__pupal tracheal transverse connective 4
           |__pupal ventral tracheal branch
           |   |__pupal ventral tracheal branch 0
           |   |__pupal ventral tracheal branch 1
           |   |__pupal ventral tracheal branch 2
           |__pupal wing tracheal branch
           |__secondary tracheal branch 43 rec.
               |__embryonic/larval dorsal group tracheal branch(+)
               |__embryonic/larval lateral group tracheal branch(+) 30 rec.
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