As adults age, the walls of their arterioles become less elastic, increasing resistance and decreasing compliance. How does this affect the blood pressure?
A) The blood pressure does not change.
B) The blood pressure is erratic.
C) The blood pressure decreases.
D) The blood pressure increases.
Ans: D
The elasticity and resistance of the walls of the arterioles help to maintain normal blood pressure. With aging, the walls of arterioles become less elastic, which interferes with their ability to stretch and dilate, contributing to a rising pressure within the vascular system. This is reflected in an increased blood pressure.
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