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
Nerve supply of larynx above the vocal cord is 
Select and explain. 
A. Internal laryngeal nerve, B. Recurrent laryngeal nerve, C. Glossopharyngeal nerve, D. External laryngeal nerve
A: Internal laryngeal nerve
Answer: A: Internal laryngeal nerve 
Explanation: Motor nerves-Recurrent laryngeal nerve supplies all intrinsic muscles except cricothyroid,which is supplied by the external laryngeal nerve.Sensory nerves-The internal laryngeal nerve supplies the mucous membrane upto the level of vocal folds.The recurrent laryngeal nerve supplies it below the vocal folds. REF.BDC VOL.3,FIFTH EDITION.