Neck muscle. Computer artwork showing the muscles of the front of the neck that attach to the hyoid bone (crescent of bone below jaw). Beneath the hyoid is the thyriod cartilage (white),which covers the larynx (voicebox). The sheet of muscle over the upper part of the cartilage is the thyrohyoid muscle. Below that is the sternothyroid muscle,which attaches to the thyroid cartilage and top of the ribs. To the left of the thyroid cartilage is the omohyoid muscle,which attaches the hyoid bone to the scapula (shoulder blade,not seen). Above the hyoid are the stylohyoid muscle,which attaches to the hyoid and skull,the digastricus muscle,which attaches to the skull,hyoid and lower jaw,and the mylohyoid (left),which attaches to the hyoid and lower jaw |