Active hyperemia refers to
A) arteriolar dilation in response to local chemical changes that accompany increased metabolic activity of the tissue
B) local arteriolar mechanisms that are aimed at keeping tissue blood flow fairly constant in spite of wide deviations in mean arterial driving pressure
C) the increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply
D) maintaining adequate mean arterial pressure to drive blood forward into a tissue
E) none of the above
Correct Answer:
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