Most common nerve injured by ligation of sup thyroid artery -: (A) RLN, (B) Facial N., (C) Mandibular M., (D) Auditory N.
Answer is A. Ans. is 'a' i.e., RLN o Recurrent laryngeal nerve (RLN) may be damaged during superior thyroid artery- ligation. Most common nerve injured by ligation of 1. Sup thyroid artery- Recurrent laryngeal nerve and 2. Inferior thyroid artery- Superior laryngeal nerve