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← Human Body & HealthIf the aorta's elastic fibers degrade, increasing arterial stiffness in a patient with hypertension, which consequence follows related to baroreceptor feedback?
A)Increased baroreceptor firing sensitivity
B)Enhanced ADH release by hypothalamus
C)Suppressed sympathetic nervous activity
D)Diminished baroreceptor reflex sensitivity✓
💡 Explanation
Arterial stiffness reduces the vessel wall's ability to distend in response to pressure changes; because baroreceptors sense stretch, their stimulation decreases. Therefore, the baroreceptor reflex sensitivity is diminished, rather than enhanced, leading to less effective blood pressure regulation.
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