This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neck Triangles and parotid gland, Subject name: Anatomy
[{'content': 'Which of the following structure does not pass through the parotid gland ? \nSelect and explain. \nA. Facial aery, B. Facial nerve, C. Retromandibular vein, D. External carotid aery', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Facial aery does not pass within the parotid gland. Structures passing through parotid gland are: External carotid aery Retro-mandibular vein Sympathetic plexus Facial nerve Passes in the middle of gland Do not supply parotid gland Creates a surgical plane - Deep : Lymph node are less - Superficial : Lymph node are more', 'role': 'assistant'}]