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What is How does chronic hypertension affect the range of arterial pressure over which the cerebral circulation can maintain relatively constant blood flow? and explain in detail?
Ans. D. THE entire range of regulation shifts to higher pressuresThe autoregulatory range is shifted to higher pressures because the arteries and arterioles increase their resistance. The functional and structural changes increase the arterial pressure at which autoregulation of blood flow occurs, but increase the lowest pressure at which blood flow can be maintained.