lateral cricoarytenoid function
The posterior cricoarytenoid muscles function to rotate the arytenoid cartilages laterally, thereby abducting the vocal cords. Their action opposes that of the lateral cricoarytenoid muscles. The lateral cricoarytenoid muscles function to rotate the arytenoid cartilages medially, thereby adducting the vocal cords. The main function of the transverse arytenoid muscle is adduction of the vocal cords.