Anatomy & Physiology: Muscles—Inferior rectus.
Structure.
- Origin: orbit around optic foramen (common tendinous ring).
- Insertion: inferior and central part of eyeball.
Function.
- Concentric action: moves eyeball inferiorly and medially; medial rotation.
- Reverse mover action:
- Eccentric action:
- Isometric action:
- Innervation: facial III nerve.
- Arterial supply: branches off the opthalmic artery.
Clinical Significance.
More.
- https://www.anatomynext.com/inferior-rectus/
- https://apps.medsch.ucla.edu/medyear1/Anatomy/extraocularMuscles/InferiorRectus.htm
Inferior rectus. 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.
