This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of Larynx, Subject name: ENT
[{'content': 'Recurrent laryngeal nerve supplies all EXCEPT: \nSelect and explain. \nA. Cricothyroid, B. Thyroaretenoid, C. Lateral cricoaretenoid, D. Posterior cricoaretenoid', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) CricothyroidRef: P.L. Dhingra 5th ed. / 317* All intrinsic muscles of the larynx are supplied by the recurrent laryngeal nerve except cricothyroid which is supplied by external branch of superior laryngeal nerve.* Recurrent laryngeal nerve supplies posterior cricoarytenoid, lateral cricoarytenoid, transverse and oblique arytenoids, aryepiglotticus, thyroarytenoid, thyroepiglotticus muscle.Also Know About laryngeal muscles movementsMovementMusclesNerve supply* Abduction of vocal cordsPosterior cricoarytenoids onlyRecurrent laryngeal nerve* Adduction of the vocal cordsLateral cricoarytenoidsInterarytenoidsThyroarytenoidsRecurrent laryngeal nerve* Tensor of vocal cordsCricothyroidSuperior laryngeal nerve* Relaxor of vocal cordThyroarytenoidRecurrent laryngealnerve* Elevation of larynxThyrohyoid, mylohyoid* Depression of larynxSternothyroid, sternohyoid', 'role': 'assistant'}]