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: Unknown
[{'content': 'A 40 year old patient has a dry eye and reduced nasal secretions. On routine examination CNS system was normal. The location of a lesion might be in the \nSelect and explain. \nA. Otic ganglion, B. Sphenopalatine ganglion, C. Ciliary ganglion, D. Superior cervical ganglion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The sphenopalatine ganglion (or pterygopalatine ganglion) is a parasympathetic ganglion found in the pterygopalatine fossa.\nIt takes care of several glands like LNP – lacrimal, nasal & palatine glands\nThe pterygopalatine ganglion (ganglion of Meckel), the largest of the parasympathetic ganglia associated with the branches of the trigeminal (maxillary branch) nerve, is deeply placed in the pterygopalatine fossa, close to the sphenopalatine foramen.', 'role': 'assistant'}]