Posted on

Muscles: Geniohyoid.

Download these notes.

Anatomy & Physiology: Muscles—Geniohyoid.

Structure.

  • Origin: inner mandibular surface.
  • Insertion: body of hyoid.

Function.

  • Concentric action: elevates and hyoid; protracts hyoid and tongue; depress mandible.
  • Reverse mover action: elevate hyoid.
  • Eccentric action: controls/restrains/slows elevation of mandible, depression of hyoid.
  • Isometric action: stabilize hyoid.
  • Innervation: first cervical spinal nerve.
  • Arterial supply: lingual artery.

Clinical Significance.

More.

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.