Physiology of Cardiovascular System - Part II
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Questions and Answers

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

  • To allow diffusion of gases between tissue cells and blood
  • To continuously circulate blood by rhythmic pumping (correct)
  • To receive and pump blood from arteries to veins
  • To distribute blood from the tissues to the heart

    • Which component of the circulatory system acts as an interchanges system for diffusion of gases, substances, and fluids between tissue cells and blood?

  • Capillaries (correct)
  • Arteries & arterioles
  • Venules & veins
  • Blood vessels

    • What is the function of venules and veins in the circulatory system?

  • To distribute blood from the heart to the tissues of the body
  • To continuously circulate blood by rhythmic pumping
  • To allow diffusion of gases between tissue cells and blood
  • To carry the blood from the tissues to the heart (correct)

    • What are the basic components of the circulatory system?

    <p>Heart, blood vessels, blood</p> Signup and view all the answers

    What is the function of arteries and arterioles in the circulatory system?

    <p>To distribute blood from the heart to the tissues of the body</p> Signup and view all the answers

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

    <p>To transport materials such as O2, CO2, nutrients, wastes</p> Signup and view all the answers

    What is the main function of the fibrous pericardium?

    <p>Preventing overfilling of the heart with blood</p> Signup and view all the answers

    Which layer of the heart wall is responsible for contractions of the heart chambers?

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

    What is the function of the atrioventricular rings in the heart?

    <p>Providing attachment to most myocardial fibers &amp; AV valves</p> Signup and view all the answers

    What separates the left and right ventricles in the heart?

    <p>Interventricular septum</p> Signup and view all the answers

    Where is the visceral pericardium located?

    <p>Surrounding the heart surface</p> Signup and view all the answers

    What is the location of the fibrous pericardium in relation to the serous pericardium?

    <p>Outer layer</p> Signup and view all the answers

    What is the main function of papillary muscles in the heart?

    <p>Projecting from the walls of ventricles into their cavities</p> Signup and view all the answers

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