Psoas Minor Muscle: A Cadaveric Morphometric Study.

Introduction The psoas muscle group is part of the posterior abdominal wall and is comprised of long muscles - major, minor, and tertius. Out of those, only the psoas major muscle is an obligatory muscle present in all individuals. The psoas minor muscle (PMM) originates as vertical fascicles inserted in the bodies of the last thoracic and first lumbar vertebrae and inserting into the iliopectineal eminence.