iliacus

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il·i·a·cus (mus·cle)

[TA]
origin, iliac fossa; insertion, via a common tendon with psoas major into anterior surface of lesser trochanter of the femur, and capsule of hip joint; action, flexes thigh and rotates it medially; nerve supply, lumbar plexus.
Synonym(s): musculus iliacus [TA], iliac muscle

iliacus

[ilī′əkəs]
Etymology: L, ilium, flank
a flat triangular muscle that covers the inner curved surface of the iliac fossa. It arises from the inner aspect of the superior iliac crest, from the anterior and the iliolumbar ligaments, and from the sacrum. It joins the psoas major to form the iliopsoas at the inguinal ligament. The iliacus is innervated by branches of the femoral nerve that contain fibers from the second and third lumbar nerves. It acts to flex and laterally rotate the thigh. Compare psoas major, psoas minor.
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Iliacus muscle

iliacus

The part of the ILIOPSOAS muscle arising from the inside of the back wall of the pelvis (the iliac fossa and sacrum) and being inserted into the top of the front of the FEMUR. The iliacus helps to flex the hip joint in walking.

iliacus

medial thigh muscle