Injury to superior laryngeal nerve causes:
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.
Hoarseness
Paralysis of vocal cords
No effect
Loss of timbre of voice