This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
Cricothyroid muscle is supplied by 
Select and explain. 
A. Recurrent laryngeal nerve, B. Inferior laryngeal nerve, C. Superior laryngeal nerve, D. Nerve of galen
C: Superior laryngeal nerve
Answer: C: Superior laryngeal nerve 
Explanation: Ref BDC volume 3;sixth edition pg 257 All intrinsic muscles of the larynx are supplied by the recurrent laryngeal nerve except for the cricothyroid which is supplied by the external laryngeal nerve.