The thyroepiglottic muscle is a muscle in the throat that connects the thyroid cartilage to the epiglottis. It serves to help move the epiglottis and close the laryngeal aditus (opening to the larynx).
The thyroepiglottic muscle originates from the thyroid cartilage, at the inner surface of the anterior section near the Adam's apple. Because they share a common origin, the thyroepiglottic muscle is often considered a part of the thyroarytenoid muscle, although their insertions are distinct.
The thyroepiglottic muscle is innervated by the recurrent laryngeal branch of the vagus nerve (CN X).