Muscle, Thyroarytenoideus (M. Thyroarytenoideus, Pna; M. Thyreoarytaenoideus Externus, Bna)

The muscles that form the larynx and trachea are important elements of the respiratory and swallowing systems. In this article we will look at one such muscle - the thyroaretaeideus muscle, which is also known as the thyroreryloideus muscle. This muscle is located on the side wall of the larynx, between the cricoid cartilage and the thyroid gland. It consists of two heads - internal (M. thymoarytenoids interims) and external (M. symoaretido exterits), which are connected to each other by a common tendon part (tennis).

The thyroarytenal muscle is one of the muscles of the respiratory tract, which is responsible for opening and closing the glottis. When the muscle contracts, the glottis narrows, allowing exhaled air to pass through the vocal cords. In addition, the thyroid tendon muscle is involved in the articulation of speech sounds and allows us to pronounce various sounds and words.

The functioning of the thyroid gland also depends on the contraction of the thyroid muscle. Due to the work of this muscle, the tongue, which is located next to the thyroid node, also moves. The tapering lingual veins are also involved in draining fluid from the lingual bladder that is not digested in the stomach.

The functions of the thyroid gland are performed through a complex multi-stage process of splitting and releasing the hormones thyroxine (T4) and triiodothyronine (T3) into the lumen of the gland. The thyroid gland is responsible for the normal functioning of the thyroid gland, which is produced



The thyroarytenoid muscle (thyroid epiglottis) is located in the lateral wall of the larynx and on its lower surface occupies the upper section of the interarytenoid space. Starts from the lateral surface of the arytenoid cartilages, anterior to their angles; goes down and lies on the membranous part of the vocal cords.