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': 'Nerve supply of ciliary muscles for pupil accommodation is: \nSelect and explain. \nA. Parasympathetic and sympathetic system, B. Somatosensory nucleus, C. Trigeminal nerve, D. Red Nucleus of mid brain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The ciliary muscle receives parasympathetic ﬁbers from the short ciliary nerves that arise from the ciliary ganglion.\xa0\nThe sympathetic postganglionic ﬁbers are part of cranial nerve V1 (Nasociliary\xa0 nerve of the trigeminal), while presynaptic parasympathetic ﬁbers to the ciliary ganglia are from the\xa0 oculomotor nerve.', 'role': 'assistant'}]