Nerve supply of larynx above the vocal cord is
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.
Internal laryngeal nerve
Recurrent laryngeal nerve
Glossopharyngeal nerve
External laryngeal nerve
Head and neck