PE - blood redistrobution

                                              exercise =  ^ CO2 and ^ acidity

                                               detected by chemoreceptors

                                                             medulla

                                                 sympethetic pathway 

             muscles                                                                             liver, kidney and gut

 pre capillary sphincters                      capillaries                         pre capillary sphincters

     vasodialtion                                SHUNTING                                 vasoconstriction