This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Glomus jugulare commonly arises from - \nSelect and explain. \nA. Hypo tympanum, B. Mesotympanum, C. Epitympanum, D. Prussaks space', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Hypotympanumo There are two types of glomus tumors:-Glomusjugulare# These glomus tumors arise from the dome of the internal jugular vein in the hypotympanum and jugular foramen. In jugular foramen they can invade IX to XII cranial nerves.Glomus tvmpanicum# They arise from the promontory of the middle ear along the course of the tympanic branch of the IXth cranial nerve.", 'role': 'assistant'}]