Anatomy & Physiology: Muscles—Iliacus.
Structure.
- Origin: iliac fossa and sacrum.
- Insertion: with psoas major into lesser trochanter of the femur.
- Of iliopsoas group.
Function.
- Concentric action: accelerates hip flexion and external/lateral rotation; extends and rotates lumbar spine.
- Reverse mover action: anterior tilt pelvis; contralateral rotation of pelvis.
- Eccentric action: decelerates hip extension and internal rotation.
- Isometric action: stabilization of lumbo-pelvic hip complex.
- Innervation: femoral nerve.
- Arterial supply: iliolumbar artery and obturator artery.
Clinical Significance.
More.
- https://www.anatomynext.com/iliacus/
- https://www.youtube.com/watch?v=7BbxUIhYxzA
- https://youtu.be/wf4minPdSBc
Iliacus. Used with permission by 3D4Medical.
References
Biel, A. (2015). Trail guide to the body: A hands-on guide to locating muscles, bones and more.
Clark, M., Lucett, S., Sutton, B. G., & National Academy of Sports Medicine. (2014). NASM essentials of corrective exercise training. Burlington, MA: Jones & Bartlett Learning.
Jenkins, G., & Tortora, G. J. (2012). Anatomy and Physiology: From Science to Life, 3rd Edition International Stu. John Wiley & Sons.
Muscolino, J. E. (2017). The muscular system manual: The skeletal muscles of the human body.
