This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cranial Cavity, Subject name: Anatomy
[{'content': 'Greater petrosal nerve carries fibers of - \nSelect and explain. \nA. Trochlear nerve, B. Facial nerve, C. Vagus nerve, D. Oculomotor nerve', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Facial nerve Petrosal nervesGreater petorsal nerveo First branch of facial nerve o Arises from geniculate gangliono In foramen lacerum it joins deep petorsal nerve and forms the nerve to pterygoid canal o Supplies lacrimal glands, nose, mucosal glands of pharynx, palate.Lesser petorsal nerveo Branch of 9th cranial nerve through tympanic plexus (passes via otic ganglion) o It suplies parotid gland.Deep petorsal nerveo It is a branch of sympathetic plexus around internal carotid artery.o It contains cervical sympathetic fibers.External petorsal nerveo It is an inconsistant branch of sympathetic plexus around middle meningeal artery.", 'role': 'assistant'}]