Sensory nerve supply of larynx below the level of vocal cord is:
Nerve supply of larynx

Sensory:

––The internal laryngeal nerve supplies the mucous membrane up to the level of the vocal folds.
––The recurrent laryngeal nerve supplies below the level of the vocal folds.

Motor:

––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.
External branch of superior laryngeal nerve
Internal branch of superior laryngeal nerve
Recurrent laryngeal nerve
Inferior pharyngeal