Iliopsoas: Origin, Insertion, Action & Nerve Supply
The iliopsoas muscle is actually two muscles, the psoas major and the iliacus muscle. They originate in different areas, but come together to form a tendon, and commonly referred to as one muscle.
Function of the iliopsoas
The iliopsoas muscle flexes the lower limb at the hip joint and assists lateral rotation at the hip joint.
Nerve Supply of the iliopsoas
The psoas major muscle is innervated by anterior rami of L1-3, and the iliacus is innervated by femoral nerve.