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
[{'content': 'Marginal mandibular branch of facial nerve lies in: \nSelect and explain. \nA. Subdermal fat plane, B. Subplatysmal plane deep to facial vein, C. Platysma plane, D. Subplatysmal plane superﬁcial to facial vein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Branches and Distribution of facial nerve:\nWithin the facial canal\n\nGreater petrosal nerve\nThe nerve to the stapedius\nThe chorda tympani\n\nAt its exit from the stylomastoid foramen\n\nPosterior auricular\nDigastric\nStylohyoid\n\nTerminal branches within the parotid gland\n\nTemporal\nZygomatic\nBuccal\nMarginal mandibular\nCervical\n\nKey Concept:\xa0\nThe marginal mandibular branch of the facial nerve is found superﬁcial to the facial artery and\xa0 (anterior) facial vein. Thus, the facial artery can be used as an important landmark in locating the\xa0 marginal mandibular nerve during surgical procedures.', 'role': 'assistant'}]