FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
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General Information
Term scolopidium ID (Ontology) FBbt:00005217 (Fly Anatomy)
Definition Sensillum unit of a chordotonal organ, consisting of a cap cell, a ligament cell, a scolopale cell (sheath cell) and the dendrites of one or more sensory neurons. The basal end of the scolopidium is held in place by a ligament cell, usually attached to the integument. The dendrite of each sensory neuron has a cilium projecting from its tip through the scolopale, a rod like structure secreted by the scolopale cell. The cilium terminates in a dendritic cap, embedded in the cap cell. The cap cell is attached to the integument.[ FlyBase:FBrf0056378 FlyBase:FBrf0098208 FlyBase:FBrf0239412 ]
Comment
Links to External Ontologies
VFB:FBbt_00005217
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      32
Insertions (FBti)  EXPRESSION_STAGE_TISSUE_POSITION       4
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       5
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      14
show Full annotation statements including this term (annotations to child terms are NOT included), and relevant FlyBase records
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Relevant FlyBase reports
 Alleles Genes Insertions Constructs
 scolopidium (all annotations which use CV term, excluding "NOT" statements)      32      5      9     15
     scolopidium | adult stage       2       --       1       --
     scolopidium | P-stage | somatic clone      14       --       --      12
     scolopidium | somatic clone       2       --       --       --
Spanning Tree (Parents/Children)
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sense organ
 |__mechanosensory sensory organ__
sensillum                         |
 |__internal sensillum____________|
internal sense organ              |
 |__internal sensillum____________|
                                  scolopidium  135 rec.
                                   |__femoral chordotonal organ scolopidium 5 rec.
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Is a mechanosensory sensory organ
internal sensillum
Develops from chordotonal organ sensory mother cell
Part of chordotonal organ
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Synonyms
Secondary IDs
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VFB:FBbt_00005217