Are You a Cardiovascular Pro?
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Questions and Answers

What distinguishes small arteries from arterioles?

  • The size of the lumen
  • The number of smooth muscle cell layers in the tunica media (correct)
  • The presence of endothelial cells
  • The thickness of the tunica adventitia
  • What is the maximum number of smooth muscle cell layers in the tunica media of a small artery?

  • 8 (correct)
  • 4
  • 1
  • 2
  • What is the main difference between arterioles and small veins?

  • The number of smooth muscle cell layers in the tunica media (correct)
  • The presence of endothelial cells
  • The size of the lumen
  • The thickness of the tunica adventitia
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