This article will discuss the anatomy and function of the glottis. Key facts about the glottisTable quiz Structure/Components Vocal folds and rima glottidis Location The glottis is the middle subsection of the larynx, located between the supraglottis and subglottis Blood supply Inferior laryngeal art...
and relaxation allows these structures to move apart (Fig. 1). Only one muscle, the posterior cricoarytenoid muscle, functions to open theglottis; the lateral cricoarytenoid muscle and the interarytenoid muscles function to close the glottis. When one or both posterior cricoaryten...