Blood Vessels Anatomy and Functions Quiz
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Blood Vessels Anatomy and Functions Quiz

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@WellManneredEpitaph1630

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Questions and Answers

What are the three layers of blood vessels?

  • Endothelium, tunica media, tunica adventitia
  • Tunica intima, tunica media, tunica adventitia (correct)
  • Tunica intima, tunica media, tunica externa
  • Tunica externa, tunica intima, smooth muscle layer

    • Which type of blood vessel is primarily responsible for controlling lumen diameter and regional blood flow through vasoconstriction and vasodilation?

  • Medium-sized muscular arteries (correct)
  • Small arteries and arterioles
  • Veins
  • Large elastic arteries

    • How does the thickness of artery walls compare to that of veins?

  • Artery walls are thinner due to low pressure
  • Arteries have walls of equal thickness as veins
  • Artery walls are thicker to withstand higher blood pressures (correct)
  • Veins have thicker walls to handle higher volume

    • What happens to the lumen of medium-sized veins after death?

    <p>The lumen collapses</p> Signup and view all the answers

    What is a key characteristic of large elastic arteries?

    <p>They contain elastic fibers that aid in recoil</p> Signup and view all the answers

    What feature distinguishes medium-sized arteries from medium-sized veins?

    <p>Medium-sized arteries have thicker walls and a narrower lumen</p> Signup and view all the answers

    Which of the following statements is true about the structural characteristics of veins?

    <p>Veins have a thin wall and a wide lumen</p> Signup and view all the answers

    How do smooth muscle contractions in small arteries and arterioles affect blood flow?

    <p>They cause dramatic changes in lumen diameter</p> Signup and view all the answers

    What is the primary function of the Tunica Intima?

    <p>Provides a smooth surface for blood flow</p> Signup and view all the answers

    Which type of capillary has pores covered by a diaphragm?

    <p>Fenestrated capillaries</p> Signup and view all the answers

    Which layer of blood vessels may contain an external elastic lamina?

    <p>Tunica Media</p> Signup and view all the answers

    What type of connective tissue is found in the Tunica Adventitia?

    <p>Loose connective tissue</p> Signup and view all the answers

    Which of the following statements about blood capillaries is incorrect?

    <p>Fenestrated capillaries have pores without diaphragms.</p> Signup and view all the answers

    What is true of the Tunica Media in terms of muscular composition?

    <p>It is thick and primarily composed of circularly arranged smooth muscle fibers</p> Signup and view all the answers

    Which characteristic of the Tunica Adventitia is accurate?

    <p>Rich in collagen fibers</p> Signup and view all the answers

    Which statement correctly describes the lumen of blood vessels post-mortem?

    <p>The lumen contains no blood after death</p> Signup and view all the answers

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