FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term neuron projection bundle ID (Ontology) FBbt:00005099 (Fly Anatomy)
Definition A fasciculated bundle of neuron projections (GO:0043005), largely or completely lacking synapses.
Also Known As"nerve fiber bundle"
Comment
Links to External Ontologies
VFB:FBbt_00005099
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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 neuron projection bundle (all annotations which use CV term, excluding "NOT" statements)
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organ system
 |__nervous system__________________
anatomical structure                |
 |__multi-cell-component structure__|
                                    neuron projection bundle  2794 rec.
                                     |__adult dorsal cervical fasciculus
                                     |__adult ventral cervical fasciculus
                                     |__lineage bundle
                                     |   |__multi-lineage bundle
                                     |   |__single-lineage bundle
                                     |__main trunk of antennal mechanosensory and motor center
                                     |__nerve 1615 rec.
                                     |   |__abdominal nerve(+) 597 rec.
                                     |   |__adult cardia nerve 1 rec.
                                     |   |__adult cardiaca-recurrent nerve
                                     |   |__adult eye nerve
                                     |   |__adult labro-frontal nerve
                                     |   |__adult leg nerve(+) 4 rec.
                                     |   |__adult occipital nerve
                                     |   |__adult recurrent nerve
                                     |   |__adult salivary gland nerve 1 rec.
                                     |   |__adult stomodeal nerve 9 rec.
                                     |   |__adult transverse nerve
                                     |   |__adult ventral cervical nerve
                                     |   |__antennal nerve tracheal branch
                                     |   |__aristal nerve
                                     |   |__crop nerve 1 rec.
                                     |   |__embryonic/larval head nerve(+) 95 rec.
                                     |   |__embryonic/larval optic stalk(+) 161 rec.
                                     |   |__embryonic/larval recurrent nerve 20 rec.
                                     |   |__frontal nerve(+) 32 rec.
                                     |   |__labial nerve(+) 11 rec.
                                     |   |__larval esophageal nerve 1
                                     |   |__larval esophageal nerve 2
                                     |   |__larval intersegmental nerve(+) 831 rec.
                                     |   |__larval peripheral glial cell 1
                                     |   |__larval prothoracic accessory nerve
                                     |   |__larval segmental nerve(+) 494 rec.
                                     |   |__maxillary nerve(+) 15 rec.
                                     |   |__mesothoracic nerve(+) 157 rec.
                                     |   |__metathoracic nerve(+) 26 rec.
                                     |   |__nervus corporis cardiaci(+) 3 rec.
                                     |   |__optic nerve(+) 115 rec.
                                     |   |__prothoracic nerve(+) 26 rec.
                                     |   |__subesophageal nerve(+) 28 rec.
                                     |   |__supraesophageal nerve(+) 182 rec.
                                     |__nerve root 49 rec.
                                     |   |__accessory pharyngeal nerve projection
                                     |   |__adult dorsal metathoracic nerve root
                                     |   |__adult maxillary-labial nerve root(+)
                                     |   |__adult pharyngeal nerve root(+)
                                     |   |__larval intersegmental nerve root(+) 46 rec.
                                     |   |__larval lateropharyngeal nerve root
                                     |   |__larval maxillary-labial nerve root(+)
                                     |   |__larval nervus corporis cardiaci II root
                                     |   |__larval pharyngeal nerve root(+)
                                     |   |__larval segmental nerve root(+) 21 rec.
                                     |   |__larval transverse nerve root
                                     |   |__nerve root glial cell(+) 45 rec.
                                     |   |__stomodeal nerve projection(+)
                                     |__neuron projection bundle of adult ventral nerve cord
                                     |   |__adult curved ventrolateral tract
                                     |   |__adult dorsal median tract
                                     |   |__adult median tract of dorsal cervical fasciculus(+)
                                     |   |__adult median tract of dorsal cervical fasciculus I
                                     |   |__adult median tract of dorsal cervical fasciculus II
                                     |   |__adult median tract of dorsal cervical fasciculus III
                                     |   |__adult ventral nerve cord commissure(+)
                                     |   |__dorsal lateral tract of dorsal cervical fasciculus
                                     |   |__dorsal lateral tract of ventral cervical fasciculus
                                     |   |__haltere tract
                                     |   |__intermediate dorsal abdominal tract
                                     |   |__intermediate tract of dorsal cervical fasciculus
                                     |   |__intermediate tract of dorsal cervical fasciculus - commissure of fine fibers
                                     |   |__intermediate tract of dorsal cervical fasciculus - haltere commissure
                                     |   |__lateral dorsal abdominal tract
                                     |   |__median dorsal abdominal tract
                                     |   |__ventral ellipse
                                     |   |__ventral lateral tract of ventral cervical fasciculus
                                     |   |__ventral median tract of ventral cervical fasciculus
                                     |__neuron projection bundle of larval ventral nerve cord 901 rec.
                                     |   |__larval intersegmental nerve root(+) 46 rec.
                                     |   |__larval longitudinal connective(+) 754 rec.
                                     |   |__larval segmental nerve root(+) 21 rec.
                                     |   |__larval transverse nerve root
                                     |   |__larval ventral nerve cord commissure(+) 222 rec.
                                     |__primary neurite tract
                                     |   |__adult anterior dorsal primary neurite tract 1
                                     |   |__adult anterior dorsal primary neurite tract 2
                                     |   |__adult anterior dorsal primary neurite tract 3
                                     |   |__adult anterior dorsal primary neurite tract 4
                                     |   |__adult anterior dorsal primary neurite tract 5
                                     |   |__adult anterior ventral primary neurite tract 1
                                     |   |__adult anterior ventral primary neurite tract 2
                                     |   |__adult anterior ventral primary neurite tract 3
                                     |   |__adult anterior ventral primary neurite tract 4
                                     |   |__adult anterior ventral primary neurite tract 5
                                     |   |__adult anterior ventral primary neurite tract 6
                                     |   |__adult anterior ventral primary neurite tract 7
                                     |   |__adult anterior ventral primary neurite tract 8
                                     |   |__adult anterior ventral primary neurite tract 9
                                     |   |__adult posterior dorsal primary neurite tract 1
                                     |   |__adult posterior dorsal primary neurite tract 2
                                     |   |__adult posterior dorsal primary neurite tract 3
                                     |   |__adult posterior dorsal primary neurite tract 4
                                     |   |__adult posterior dorsal primary neurite tract 5
                                     |   |__adult posterior dorsal primary neurite tract 6
                                     |   |__adult posterior dorsal primary neurite tract 7
                                     |   |__adult posterior ventral primary neurite tract 1
                                     |   |__adult posterior ventral primary neurite tract 2
                                     |   |__adult posterior ventral primary neurite tract 3
                                     |   |__adult posterior ventral primary neurite tract 4
                                     |   |__adult posterior ventral primary neurite tract 5
                                     |   |__adult posterior ventral primary neurite tract 6
                                     |   |__adult posterior ventral primary neurite tract 7
                                     |   |__adult posterior ventral primary neurite tract 8
                                     |   |__adult posterior ventral primary neurite tract 9
                                     |   |__adult posterior ventral primary neurite tract 10
                                     |   |__adult posterior ventral primary neurite tract 11
                                     |   |__adult posterior ventral primary neurite tract 12
                                     |__tract 1383 rec.
                                         |__adult cervical connective(+) 20 rec.
                                         |__adult optic lobe-calycal tract(+)
                                         |__chiasma(+) 47 rec.
                                         |__commissure(+) 748 rec.
                                         |__embryonic fiber tract(+) 18 rec.
                                         |__embryonic/larval posterior cervical tract
                                         |__fascicle(+) 944 rec.
                                         |__median bundle(+) 42 rec.
                                         |__ocellar nerve 27 rec.
                                         |__pb-fb tract(+) 1 rec.
                                         |__supraesophageal gustatory tract(+)
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Is a multi-cell-component structure
Part of nervous system
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Synonyms
  • "nerve fiber" RELATED
    "nerve fiber bundle" EXACT
Secondary IDs
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CARO:0001001
UBERON:0000122
VFB:FBbt_00005099