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Muscles: Rectus Capitis Lateralis.

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Anatomy & Physiology: Muscles—Rectus Capitis Lateralis.

Structure.

  • Origin: superior surface of transverse process.
  • Insertion: inferior surface of jugular process of occipital.

Function.

  • Concentric action: lateral head flexion.
  • Reverse mover action: atlas lateral flexion.
  • Eccentric action: controls/restrains/slows contralateral lateral head flexion.
  • Isometric action: stabilization of head.
  • Innervation: cervical spinal nerves.
  • Arterial supply: vertebral artery and occipital artery.

Clinical Significance.

References

Biel, A. (2015). Trail guide to the body: A hands-on guide to locating muscles, bones and more.

Cedars-Sinai. (2018). Vertebrae of the spine. Retrieved from https://www.cedars-sinai.org/health-library/diseases-and-conditions/v/vertebrae-of-the-spine.html

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.