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': 'All of the following are example of feed forward control system except \nSelect and explain. \nA. Temperature regulation, B. BP regulation, C. Cephalic phase of gastric secretion, D. Increased heart rate before start of exercise', 'role': 'user'}, {'content': "Answer: B \nExplanation: BP regulation is example of negative feedback control.\nFeedforward control :\nIn this, it anticipates the discharge and prevent the change in 'controlled variable' by generating a corrective command that anticipates the change in 'controlled variable'\nExample :\n\nTemperature regulation\nCephalic phase of gastric secretion\nIncrease in heart rate and respiratory rate even before exercise.\nCerebellar action in motor co-ordination.", 'role': 'assistant'}]