Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhich cardiovascular effect arises from reduced systemic vascular resistance?
A)Decreased mean arterial pressure, therefore.✓
B)Increased cardiac muscle contractility
C)Elevated venous return to heart
D)Significant rise in blood viscosity
💡 Explanation
Decreased vascular resistance lowers afterload because Ohm's Law causes decreased driving pressure. Mean arterial pressure falls on vasodilation; therefore, pressure drops throughout the systemic circuit, rather than directly causing other adaptations in cardiac function.
🏆 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 →- In an asthmatic patient, what causes increased airway resistance following exposure to an allergen?
- Following a severe bacterial infection in lung tissue, what explains the crucial role of lipoxins and resolvins in facilitating the resolution of inflammation, rather than its chronic persistence?
- Why does bronchospasm occur during an asthma attack?
- A patient with a genetic defect has impaired cytotoxic T lymphocyte (CTL) function. Why does this deficiency increase the risk of virally induced tumors?
- Why does persistent hyperthyroidism increase the risk of osteoporosis in older adults?
- Why does vasoconstriction in peripheral blood vessels lead to shivering during thermoregulation when a person enters a walk-in freezer?
