system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
During Flight or Fight reaction, which of the following is responsible for increase in local blood flow
assistant
The correct answer is  Main actions of sympathetic system, when activated, are mediated through noradrenaline. But the local blood flow is increased due to release of acetylcholine at sympathetic cholinergic endings.