<prompt> Sensory nerve supply of larynx below the level of vocal card is :External branch of superior laryngeal nerveInternal branch of superior laryngeal nerveRecurrent laryngeal nerveInferior pharyngeal  <response>: Ans is c i.e. . Recurrent laryngeal nerve Sensory N supply of Larynx above the vocal cards - Internal br. of sup. Laryngeal nerveSensory N supply of Larynx below the vocal cards- Recurrent laryngeal N.Also RememberAll Ms of Larynx are supplied by recurrent Laryngeal nerve except Cricothyroid which is supplied by External br. of superior laryngeal nerve.Both the recurrent laryngeal n superior Laryngeal nerve are branches of vagus nerve X CN but they contain fibres of the cranial part of the accessory nerve XI CN.Cranial part of accessory nerve is distributed through the vagus to ms. of palate, pharynx larynx.Spinal part of accessory nerve supply the sternocleidomastoid trapezius muscles. 