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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Cricothyroid muscle is supplied by which nerve?
assistant
The correct answer is  Ans. is 'c' i.e., External laryngeal nerve Nerve supply of larynx* The main cranial nerve innervating the larynx is the vagus nerve via its branches; superior laryngeal nerve (SLN) and recurrent laryngeal nerve (RLN).Sensory supply of larynx* Above the level of vocal cords, larynx is supplied by internal laryngeal nerve, a branch of superior laryngeal nerve.* Below the vocal cord, larynx is supplied by recurrent laryngeal nerve.Motor supply of larynx* All the intrinsic muscles of larynx are supplied by recurrent laryngeal nerve except for cricothyroid muscle.* Cricothyroid is supplied by external laryngeal nerve, a branch of superior laryngeal nerve.