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Human Body & Health

Which 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.

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