Which of the following is the abductor of vocal cords?: (A) Lateral cricoarytenoid, (B) Posterior cricoarytenoid, (C) Anterior cricoarytenoid, (D) Cricothyroid
Answer is B. Muscles acting on vocal cords: Abductor of vocal cord: Posterior cricoarytenoid Adductors: Lateral cricoarytenoid, interarytenoid (transverse arytenoid), thyroarytenoid (external pa Tensors: Cricothyroid vocalis (internal pa of thyroarytenoid)