Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthIf a patient experiences chronic hypertension due to increased sympathetic nervous system activity, which consequence follows regarding cardiovascular hemodynamics?
A)Decreased vascular smooth muscle tone
B)Increased systemic vascular resistance✓
C)Reduced cardiac contractility reserve
D)Enhanced venous return to the heart
💡 Explanation
Chronic hypertension, induced by elevated sympathetic activity, causes vasoconstriction, leading to increased systemic vascular resistance because the sympathetic nervous system directly stimulates vascular smooth muscle contraction. Therefore, peripheral resistance rises, rather than decreases, and cardiac issues can develop later due to the sustained pressure overload.
🏆 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 →- If a researcher discovers that chronically elevated levels of TNF-alpha cause systemic insulin resistance, which consequence primarily explains this phenomenon in adipocytes?
- Why does the lens curvature change dynamically during accommodation in the eye?
- Why does repeated exposure to a pathogen, through vaccination or natural infection, result in antibodies with higher affinity?
- A patient taking warfarin undergoes a liver function test. Which outcome affecting blood coagulation is most likely if liver function is severely impaired?
- Why does local blood flow autoregulation fail during severe sepsis?
- During vigorous exercise, which mechanism ensures sufficient muscle oxygenation, overriding local blood pressure?
