This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: Anatomy
All of the following are supplied by recurrent laryngeal nerve except: (Repeat) 
Select and explain. 
A. Cricothyroid, B. Posterior cricoarytenoid, C. Oblique ary tenoids, D. Transverse arytenoids
A: Cricothyroid
Answer: A: Cricothyroid 
Explanation: Ans A (Cricothyroid) Ref: Gray's Anatomy, 40th edition, pg. 700Explanation:Nerve Supply of LarynxMotorAll intrinsic muscles of the laryngx are supplied by recurrent laryngeal nerve except for cricothyroid which is supplied by external laryngeal nerveSensoryUpto the level of vocal fold is supplied by- internal laryngeal nerveBelow the level of vocal cord is supplied by recurrent laryngeal nerve