Omohyoid muscle Omohyoid muscle The omohyoid muscle is a muscle that depresses the hyoid. It is located in the front of the neck and consists of two bellies separated by an intermediate tendon. Its superior belly serves as the most lateral member of the infrahyoid muscles, located lateral to both the sternothyroid and thyrohyoid muscles. Its name derives from the Greek "omos" meaning shoulder, giving one of its attachments, and "hyoid", giving the other attachment - the hyoid bone. It arises from the upper border of the scapula, and occasionally from the superior transverse scapular ligament which crosses the scapular notch, its
Geniohyoid muscle of the Digastrici, the Mylohyoidei, and Geniohyoidei. It also assists in depressing the mandible The inclined position of the geniohyoid muscle has been contrasted to the horizontal position in neanderthals. Geniohyoid muscle The geniohyoid muscle is a narrow muscle situated superior to the medial border of the mylohyoid muscle. It is named for its passage from the chin ("genio-" is a standard prefix for "chin") to the hyoid bone. It arises from the inferior mental spine, on the back of the mandibular symphysis, and runs backward and slightly downward, to be inserted into the anterior surface of the body of