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: Dental
[{'content': 'Function of myoepithelial cell: \nSelect and explain. \nA. Accelerate the initial outflow of saliva from the acini., B. Reduce the luminal volume., C. Contribute to secretory pressure in the acini or duct., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Accelerate the initial outflow of saliva from the acini.\nReduce luminal volume. The intercalated ducts may shorten and widen the ducts helping to maintain their patency.\nContribute to secretory pressure in the acini or duct.\nSupport the underlying parenchyma and reduce the back permeation of fluid.\nHelp salivary flow to overcome increase in peripheral resistance of the ducts', 'role': 'assistant'}]