Arterioles and Smooth Muscle Action
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Questions and Answers

What is the function of smooth muscle in arterioles?

  • Prevents blood clot formation
  • Maintains arterial elasticity
  • Controls systemic blood pressure (correct)
  • Regulates blood flow to organs

    • What is the composition of the intima in arterioles?

  • Flattened endothelial cells resting on a basal lamina (correct)
  • Adipose tissue and connective tissue
  • Smooth muscle cells arranged in concentric layers
  • Collagen fibers and elastic tissue

    • What is the significance of the basal lamina in arterioles?

  • It is only visible with electron microscopy (correct)
  • It regulates blood flow to organs
  • It provides structural support to the intima
  • It prevents blood clot formation

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