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Human Body & Health

What distinguishes angiotensin II's vasoconstrictive effect in chronic hypertension from its role in acute blood pressure regulation?

A)Potentiates baroreceptor reflex sensitivity acutely
B)Induces arterial remodeling, increasing stiffness
C)Primarily stimulates aldosterone release rapidly
D)Inhibits nitric oxide synthase transiently

💡 Explanation

Chronic hypertension involves arterial remodeling due to sustained angiotensin II activity, increasing vascular stiffness because angiotensin II stimulates collagen and elastin deposition. Therefore, arterial stiffness becomes a long-term consequence, rather than acute vasoconstriction; other mechanisms regulate immediate blood pressure.

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