ABSTRACT
The larynx is located along the midline of the anterior part of the neck, at approximately the level of the third to sixth cervical vertebrae. It extends from the base of the tongue to the trachea, and communicates posteriorly with the oropharynx and the hypopharynx. The laryngeal inlet is the opening that connects the larynx to the pharynx. Its borders are the epiglottis anteriorly and superiorly, the aryepiglottic folds laterally and the mucosa overlying the arytenoid cartilages and the interarytenoid area posteriorly. The hypopharynx extends laterally to the laryngeal inlet to form the piriform sinuses. The vestibular folds, or the false vocal cords, are bilateral mucosal folds extending from the inner surface of the thyroid cartilage anteriorly to the body of the arytenoid cartilage posteriorly. The body of the vestibular fold is made by the vestibular ligament, the thickened free inferior margin of the quadrangular membrane.
