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Which of the following is true about blood pressure? A. It falls when the heart contracts. B. Artery walls help to maintain pressure, even between heart beats. C. It is not affected by atherosclerosis. D. Diastolic pressure is higher than systolic pressure.



Answer :

Blood pressure B) Artery walls help to maintain pressure, even between heartbeats. 

Answer:

B. Artery walls help to maintain pressure, even between heart beats.

Explanation:

Arteries are the blood vessels that have elastic and thicker walls to withstand the higher blood pressure. Since the wall of the arteries are elastic, these blood vessels can expand to accommodate the incoming blood and then recoil. The alternative pattern of expansion and recoiling of arteries, as facilitated by their elastic walls, serve to maintain the higher blood pressure even between heart beats.

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