This site is intended for healthcare professionals
General Practice Notebook
Medical search

omohyoid muscle (anatomy)

FREE subscriptions for doctors and students... click here
You have 3 open access pages.

Omohyoid is one of the infrahyoid muscles of the neck. It arises from the superior border of the scapula and suprascapular ligament. Passing superomedially, it becomes tendinous to form the intermediate tendon that passes through a fascial sling attached to the medial end of the clavicle. Continuing as a slender muscle, it ascends medially from the sling to insert into the inferior border of the hyoid bone.

The part of the muscle lateral to the sling is the inferior belly. The part medially-sited is the superior belly. Omohyoid divides the posterior triangle of the neck into the supraclavicular triangle inferiorly and the occipital triangle superiorly.

It is innervated by the ansa cervicalis from the cervical roots (C1-C3).

Omohyoid acts to on the hyoid bone, and hence the larynx, to:

  • retract
  • depress
  • stabilize
 
General Practice Notebook
General Practice Notebook
The information provided herein should not be used for diagnosis or treatment of any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions. Copyright 2016 Oxbridge Solutions LtdĀ®. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions LtdĀ® receives funding from advertising but maintains editorial independence. GPnotebook stores small data files on your computer called cookies so that we can recognise you and provide you with the best service. If you do not want to receive cookies please do not use GPnotebook.