Circulatory System Quiz
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Questions and Answers

Which two systems make up the circulatory system?

  • Endocrine and immune systems
  • Cardiovascular and respiratory systems
  • Digestive and nervous systems
  • Cardiovascular and lymphatic systems (correct)
  • What is the function of capillaries in the circulatory system?

  • Transport blood away from the heart
  • Gas exchange in lungs
  • Return blood back to the heart
  • Exchange of gases, nutrients, and wastes in tissues (correct)
  • Which layer of arteries and veins is mostly composed of smooth muscle?

  • Tunica adventitia
  • Tunica intima
  • Endothelium
  • Tunica media (correct)
  • What is the main function of blood in the circulatory system?

    <p>Transport oxygen and nutrients to all tissues</p> Signup and view all the answers

    What is the purpose of pulmonary circulation?

    <p>Gas exchange in lungs</p> Signup and view all the answers

    Which two systems make up the circulatory system?

    <p>Cardiovascular and lymphatic systems</p> Signup and view all the answers

    What is the purpose of pulmonary circulation?

    <p>Exchange gases in the lungs</p> Signup and view all the answers

    What is the main function of capillaries in the circulatory system?

    <p>Exchange gases, nutrients, and wastes in tissues</p> Signup and view all the answers

    What is the function of the tunica media in arteries and veins?

    <p>Contraction and relaxation to regulate blood flow</p> Signup and view all the answers

    What is the composition of the tunica adventitia (externa) in arteries and veins?

    <p>Connective tissue with fibrocytes, collagen, and elastic fibers</p> Signup and view all the answers

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