FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term mesothoracic tracheal pit ID (Ontology) FBbt:00000199 (Fly Anatomy)
Definition Tracheal pit of the second thoracic segment of the embryo. During stages 14-15, the pit fuses with special cells of the prothorax to give rise to the anterior spiracle.[ FlyBase:FBrf0064787 FlyBase:FBrf0089570 ]
Also Known As "tracheal pit 1"
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      10
Constructs (FBtp)  PHENOTYPE_MANIFEST_IN      10
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 Constructs
 mesothoracic tracheal pit (all annotations which use CV term, excluding "NOT" statements)      10      1      2     10
     mesothoracic tracheal pit | embryonic stage | heat sensitive       3       --       --       3
Spanning Tree (Parents/Children)
Only view relationship:
tracheal primordium
 |__mesothoracic tracheal primordium__
 |__tracheal pit______________________|
                                      mesothoracic tracheal pit  23 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a mesothoracic tracheal primordium
tracheal pit
Part of
hide Synonyms & Secondary IDs
Synonyms
  • "tracheal pit 1" EXACT
Secondary IDs
hide External Crossreferences & Linkouts