Which of the following muscle act as tensor of vocal cord?: (A) Vocalis, (B) Cricothyroid, (C) Cricoarytenoid, (D) Thyroarytenoid
Answer is B. 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).