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: Physiology
[{'content': 'Nicotinic receptors are seen in all except: September 2007 \nSelect and explain. \nA. Neuromuscular junction, B. Autonomic ganglia of autonomic nervous system, C. Bronchial smooth muscle, D. Brain', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: Bronchial Smooth Muscle The nicotinic cholinergic receptors are found in the neuromuscular junctions of somatic muscles; stimulation of these receptors causes muscular contraction. They are also found in the autonomic ganglia of autonomic nervous system and central nervous system Muscarinic receptors are found in: M 1-brain M 2-hea M 3-smooth muscle M 4-smooth muscle, pancreatic acinar and islet tissue', 'role': 'assistant'}]