<prompt> Injury to superior laryngeal nerve causes:HoarsenessParalysis of vocal cordsNo effectLoss of timbre of voice  <response>: Ans. is d e. Loss of timbre of voice Paralysis of Superior Laryngeal Nerve -causes paralysis of cricothyroid muscle which is a tensor of vocal cord. Clinical Features Voice is weak and pitch cannot be raised. UL Anaesthesia of larynx above the level of vocal cords causing occasional aspiration. 