Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhat 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.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Which outcome is most likely when molecular mimicry bypasses thymic selection and regulatory T cell (Treg) activity is insufficient after a Streptococcus infection?
- An individual consumes a large meal rich in fats, but their gallbladder is failing to release adequate bile. Which consequence follows regarding digestive efficiency?
- In the context of drug addiction, what causes escalating drug cravings despite diminished euphoric effects with repeated use?
- Why does the human body initiate shivering during hypothermia, rather than vasodilation, to restore its optimal internal temperature?
- If a 60-year-old individual experiences increased difficulty reading small print despite using reading glasses, which mechanism explains this phenomenon in terms of lens curvature?
- Why does disrupted sleep affect female hormonal cycles more severely than in males?
