<prompt> Which of the following muscle act as tensor of vocal cord?VocalisCricothyroidCricoarytenoidThyroarytenoid  <response>: Cricothyroid Vocalis which is the internal pa of thyroarytenoid act as tensor of vocal cord. Muscles acting as abductors of vocal cords: posterior cricoarytenoid Adductors of vocal cords: lateral cricoarytenoid, interarytenoid and thyroarytenoid external pa. Muscles which acts as openers of laryngeal inlet: Thyroepiglottic pa of thyroarytenoid Muscles which close laryngeal inlet: Interarytenoid oblique pa, aryepiglottic posterior oblique pa of interarytenoids. 