Injury to superior laryngeal nerve causes:: (A) Hoarseness, (B) Paralysis of vocal cords, (C) No effect, (D) Loss of timbre of voice
Answer is D. 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. U/L Anaesthesia of larynx above the level of vocal cords causing occasional aspiration.