Psoas minor muscle

Dr Henry Knipe et al.

Psoas minor muscle is a thin muscle with a long tendon and is functionally insignificant compared to psoas major. It is present in ~60% (range 50-67%) of the population 1-2.

Summary

  • origin: T12 and L1 transverse processes
  • insertion: passes behind the inguinal ligament to insert into the iliopubic eminence
  • nerve supply: L1 nerve root
  • action: lumbar spine flexion
Abdominal and pelvic anatomy
Share article

Article information

rID: 24534
Section: Anatomy
Tags: stub, refs, cases
Synonyms or Alternate Spellings:
  • Psoas minor

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.