The ejection of blood from the heart is intermittent, yet the flow of blood through the blood vessels is continuous. This is possible because

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Accepted Answer

of elastic recoil of the walls of the arteries which had been stretched by blood entering the arteries during systole.

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of the large diameter of the main arteries leaving the heart.

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pre-capillary sphincters open during diastole allowing blood to enter the capillaries.

Answer

the arterioles dilate during diastole, which increases the pressure difference between the arteries and arterioles.

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