Significance of critical closing pressures (starling resistors) in arterial circulation

[...]radial arterial catheterization reports the same MAP as sensed in the aorta. [...]there is both arterial resistance in the small arteries that define a given arterial pressure-flow relation and a Pcc which defines the effective back pressure to that flow. [...]microcirculatory flow, as a direct measure of tissue blood flow, should vary independent of global changes in cardiac output and arterial pressure, as those changes are proportional changes in local metabolic demand [7].