The sternohyoid is a muscle located in the neck. It is part of the group of muscles known as the infrahyoid muscles, which help in the movement of the hyoid bone and the larynx. The sternohyoid originates from the sternum and the clavicle and inserts into the hyoid bone. Its primary function is to depress the hyoid bone during swallowing and speaking. This muscle plays a crucial role in various neck movements and is important for maintaining proper airway function. The sternohyoid works in coordination with other infrahyoid muscles, such as the sternothyroid and omohyoid, to facilitate these actions.