FB2025_05 , released December 11, 2025
FB2025_05 , released December 11, 2025
CV Term Report
Help Close All Open All
General Information
Term mesothoracic tergotrochanter muscle ID (Ontology) FBbt:00058925 (Fly Anatomy)
Definition Extracoxal trochanter depressor muscle of the adult mesothoracic leg. This large muscle attaches dorsally onto the lateral scutum, adjacent to the wing base. It extends ventrally to converge to a single tendon that attaches onto a medial projection of the trochanter within the coxa. This muscle is the principal executor of the jump response. It is the largest synchronous (control) flight muscle, contracting at the onset of flight to extend the mesothoracic femur and tibia (Dickinson and Tu, 1997). It is innervated by the tergotrochanter muscle motor neuron.[ FlyBase:FBrf0007735 FlyBase:FBrf0035198 FlyBase:FBrf0064793 FlyBase:FBrf0098527 FlyBase:FBrf0192609 FlyBase:FBrf0193310 FlyBase:FBrf0228229 ]
Also Known As "jump muscle" ; "mesothoracic extracoxal trochanter depressor muscle 66" ; "mesothoracic extracoxal trochanter depressor of trochanter" (for all, see Synonyms field below)
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
Insertions (FBti)  PHENOTYPE_MANIFEST_IN       1
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 Insertions Constructs
 mesothoracic tergotrochanter muscle (all annotations which use CV term, excluding "NOT" statements)       3      1      1      2
     mesothoracic tergotrochanter muscle | adult stage       3       --       1      2
Spanning Tree (Parents/Children)
Only view relationship:
leg extensor muscle
 |__extracoxal trochanter depressor muscle__
leg muscle of body wall                     |
 |__extracoxal trochanter depressor muscle__|
leg depressor muscle                        |
 |__extracoxal trochanter depressor muscle__|
 |__mesothoracic depressor muscle___________|
flight muscle                               |
 |__flight control muscle___________________|
 |__indirect flight muscle__________________|
adult mesothoracic leg muscle               |
 |__mesothoracic depressor muscle___________|
synchronous muscle                          |
 |__flight control muscle___________________|
                                            mesothoracic tergotrochanter muscle  152 rec.
Spanning Tree View Settings
Parents/Children
View Depth
Show hierarchy levels: for parents, for children
hide Relationships
Is a flight control muscle
extracoxal trochanter depressor muscle
indirect flight muscle
mesothoracic depressor muscle
Part of
hide Synonyms & Secondary IDs
Synonyms
Secondary IDs
hide External Crossreferences & Linkouts