<prompt> The vasodilatation produced by carbon dioxide is maximum in one of the following:KidneyBrain.Liver.Hea.  <response>: B i.e. BrainThe metabolic changes that produce vasodilatation, in most tissue, is decrease in O2 pHT CO2 is associated with cutaneous cerebral vosodilatationQ, but vasoconstriction elsewhere usually a slow rise in BP. 