Do dilated blood vessels increase perfusion and heatloss, while constricted vessels greatly reduce cutaneous blood?

Vasodilatation&const. Vasodilatation causes at the skin level -heat loss for example in fever, alcohol intoxication . Vasoconstriction reduces conservation of heat by avoiding loss of heat bec. Of the constricted vs which occurs in exposure to cold. Increased perfusion because of the vasodilatation or decreased perfusion with vasoconstr. Are initial natural protective reflexes, lost later if the initial event untrea.Ted.