Explore the Heart
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Questions and Answers

Which layer of the heart is responsible for pumping blood?

  • Epicardium
  • Pericardium
  • Endocardium
  • Myocardium (correct)

    • Which of the following is NOT a function of the cardiovascular system?

  • Production of red blood cells (correct)
  • Removal of CO2
  • Delivery of oxygen
  • Circulation of blood

    • Which valves are responsible for the closure of the atrioventricular (AV) valves?

  • Pulmonic and Aortic
  • Tricuspid and Mitral (correct)
  • Semilunar and Aortic
  • Tricuspid and Pulmonic

    • What is the term for the volume of blood that returns to the heart?

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

    Which of the following is NOT a condition that influences stroke volume?

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

    Which membrane covers the muscular pumping organ of the body?

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

    Which layer of the heart is responsible for the contraction of the atria and ventricles?

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

    Which type of blood vessels transport blood away from the heart?

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

    What is the term for the closure of the atrioventricular (AV) valves, resulting in the 'LUB' sound?

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

    Which condition influences stroke volume and is affected by circulating catecholamines in the sympathetic nervous system?

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

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