NCIt definition : A striated muscle located in the iliac region that originates both on the transverse
processes of the twelfth thoracic through fifth lumbar vertebrae and the lateral aspects
of the discs between them, and inserts on the lesser trochanter of the femur; it functions
to flex the hip joint.;
Alternative definition : CDISC: A muscle located in the iliac region posterior to the psoas minor muscle that
originates from the ventral surfaces of the lumbar vertebral bodies, fuses with the
Iliacus muscle to form m. ileopsoas and attaches to the femur; primary function is
flexion of the hip joint.;