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GK QUESTION#3771

Why do arteries have thick and elastic walls?

  1. ATo allow slow flow of blood at low pressure
  2. BTo prevent blood from flowing back into the heart
  3. CTo withstand and maintain the high pressure of blood pumped from the heartCorrect answer
  4. DTo store extra blood for later circulation
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Answer

C. To withstand and maintain the high pressure of blood pumped from the heart

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Explanation

Arterial walls contain muscle and elastic tissue that withstand pressure generated by the heart. Stretch and elastic recoil help maintain blood flow between heartbeats. This is distinct from the low-pressure return function of veins.

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