iliacus

Iliopsoas Muscle

Iliopsoas Muscle The structure indicated is the iliopsoas muscle. The iliopsoas muscle collectively refers to the distal ends of the psoas major and iliacus muscles which exit the pelvis to enter the anterior compartment of the thigh and insert onto the lesser trochanter of the femur. The iliopsoas muscle is the strongest hip flexor. Origin: Iliac fossa and vertebral bodies of T12 to L5 Insertion: Lesser trochanter of femur Innervation: anterior rami of lumbar plexus (L2-L4) Action: Hip flexion, lateral rotation of femur Learn more about the muscles of the anterior compartment of the thigh in this tutorial.
iliopsoas

Psoas Major

Psoas Major The structure indicated is the psoas major muscle The psoas major muscle is one of the muscles which makes up the posterior abdominal wall. There are four muscles which contribute to the posterior abdominal wall: Psoas major Psoas minor Quadratus lumborum Iliacus The iliacus muscle combines with the psoas major muscle to enter the anterior compartment of the thigh and insert via a common tendon on the lesser trochanter of the femur. The iliacus and the psoas major muscles are thus collectively referred to as the iliopsoas muscle – they act synergistically to flex the thigh at the …

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psoas major

Iliacus Muscle

Iliacus Muscle The muscle indicated is the iliacus muscle. The iliacus originates in the iliac fossa on the inside of the pelvic bone. The iliacus combines with the psoas major to enter the anterior compartment of the thigh and insert via a common tendon on the lesser trochanter of the femur. The iliacus and psoas are thus collectively referred to as the iliopsoas muscle – they act synergistically to flex the thigh at the hip joint, as well as acting to cause lateral rotation of the thigh. The iliopsoas muscles are the strongest hip flexors. Origin: Iliac fossa Insertion: Base …

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Iliacus