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← Human Body & HealthWhy does arterial stiffness in hypertension increase blood pressure variability, rather than stabilize it?
A)Increased nitric oxide production buffers changes
B)Baroreceptor sensitivity increases buffering extremes
C)Autonomic reflexes quickly restore equilibrium
D)Impaired baroreflex sensitivity amplifies pressure swings✓
💡 Explanation
Arterial stiffness impairs the baroreflex, because the arterial walls are less able to expand and contract in response to pressure changes, therefore baroreceptors are less effective at sensing and modulating blood pressure, rather than buffering the changes as they normally would.
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