<prompt> Not true about the shunt vessel isIt controls temperature regulationIt is direct communication between aery and veinIt is under control of local mediatorsIt is not under autonomic control  <response>: Shunt vessels are under the vaso constructive action of sympathetic nervous system, under the sympathetic control the shunt vessel able to close completely, diveing the blood into normal pathway. Ref: Grays 39ep112-127 