Which statement is true of the effect of the elasticity of the large arteries on BP?
A)It lowers diastolic BP and raises systolic BP.
B)It lowers systolic BP and raises diastolic BP.
C)It lowers both systolic and diastolic BP.
D)It raises both systolic and diastolic BP.

Question

Quizplus · Accepted Answer

The elasticity of the large arteries allows them to stretch and accommodate the pressure of blood ejected from the heart during systole. This lowers systolic blood pressure. When the pressure released by the heart decreases and the heart starts to refill with blood during diastole, the elastic recoil of the vessels helps to maintain the pressure, which raises diastolic blood pressure. Therefore, the elasticity of the large arteries lowers systolic blood pressure and raises diastolic blood pressure, making option B the correct answer.

Which Statement Is True of the Effect of the Elasticity