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
During Flight or Fight reaction, which of the following is responsible for increase in local blood flow : 
Select and explain. 
A. Sympathetic system mediated Cholinergic release, B. Local hormones, C. Para-sympathetic cholinergic, D. Endocrine factors only
A: Sympathetic system mediated Cholinergic release
Answer: A: Sympathetic system mediated Cholinergic release 
Explanation: A i.e. Sympathetic mediated cholinergic releaseThe 'flight or fight' reaction is a sympathetic alarm reaction wherein a large poion of sympathetic nervous system discharged at the same timeQ, in response to a variety of stress.