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