This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Structure not injured in submandibular gland excision ? 
Select and explain. 
A. Inferior alveolar nerve, B. Lingual nerve, C. Hypoglossal nerve, D. Marginal mandibular branch of facial nerve
A: Inferior alveolar nerve
Answer: A: Inferior alveolar nerve 
Explanation: Submandibular duct runs forward between the lingual nerve and hypoglossal nerve.Marginal mandibular branch of facial nerve passes posterio inferior to angle of jaw, so it may be injured if incision is too close to angle of jaw.