Circulatory System Quiz
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Questions and Answers

What is the primary function of veins in the circulatory system?

  • To facilitate gas exchange between blood and tissues
  • To store blood temporarily before it enters arteries
  • To carry oxygenated blood away from the heart
  • To carry de-oxygenated blood to the heart (correct)

    • Which of the following statements accurately describes capillaries?

  • They are larger in diameter than veins.
  • They are thick-walled blood vessels.
  • They allow for gas exchange between blood and tissues. (correct)
  • They carry blood under high pressure.

    • Which vein is commonly used for venipuncture in the arm?

  • Femoral Vein
  • Median Cubital Vein (correct)
  • Jugular Vein
  • Subclavian Vein

    • What structural characteristic of veins helps in preventing the backflow of blood?

    <p>Valves</p> Signup and view all the answers

    What distinguishes the blood pressure in capillaries from that in veins?

    <p>Veins have lower blood pressure than capillaries.</p> Signup and view all the answers

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