This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
Sympathetic stimulation decreases blood flow to all except 
Select and explain. 
A. Skin, B. Coronary circulation, C. Cerebral, D. Renal
B: Coronary circulation
Answer: B: Coronary circulation 
Explanation: Coronary circulation: Sympathetic stimulation will not decrease blood flow to the hea. If it occurs, then during sympathetic stimulation there is a high chance of getting myocardial infarction.