This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Which of the following action is ascribed to delta type of opioid receptors? \nSelect and explain. \nA. Supraspinal analgesia, B. Respiratory depression, C. Euphoria, D. Reduced intenstinal motility', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref: KDT 6/e p462 Both spinal as well as suprapinal analgesia is mediated by all three opioid receptors i.e.u,k. Other actions mentioned in the question are mainly mediated by m receptors.', 'role': 'assistant'}]