A Study of Anatomical Variability of the Omohyoid Muscle and its Clinical Relevance

This is the authors' abstract. We don't add key points for this paper.

Variations of this muscle are important because of its close relation to the large vessels and brachial plexus. Because of the direct adhesion of the intermediate tendon to the anterior wall of the internal jugular vein and its connection with it through a thin lamina of the pretracheal layer of the cervical fascia, the contraction of the omohyoid muscle has a direct effect on the lumen of this vessel.