This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diagnostic and operative ENT, Subject name: ENT
Most common nerve injured in ligation of inferior thyroid aery 
Select and explain. 
A. Recurrent laryngeal nerve, B. Facial nerve, C. Mandibular nerve, D. Audirory nerve
A: Recurrent laryngeal nerve
Answer: A: Recurrent laryngeal nerve 
Explanation: Recurrent laryngeal nerve may pass anterior, posterior or through the branches of the aery and care is taken to preserve it. RLN is injured near the ligament of Berry when cautery or aery forceps is used indiscriminately while cutting the ligament of Berry to free the thyroid lobe. Ref: Dhingra 7e pg 382.