Quiz Heart Chapter 19
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Questions and Answers

Which of the following lists the valves in the order through which the blood flows from the vena cava through the heart?

  • tricuspid, pulmonary semilunar, bicuspid, aortic semilunar (correct)
  • mitral, pulmonary semilunar, bicuspid, aortic semilunar
  • aortic semilunar, pulmonary semilunar, tricuspid, bicuspid
  • bicuspid, aortic semilunar, tricuspid, pulmonary semilunar
  • The cardiac cycle consists of a distinct relaxation and contraction phase. Which term is used for ventricular contraction while no blood is being ejected?

  • diastole
  • isovolumetric contraction (correct)
  • ventricular ejection
  • isovolumetric relaxation
  • The first heart sound represents which part of the cardiac cycle?

  • atrial systole
  • closing of the aortic semilunar valve
  • closing of the semilunar valves
  • closing of the atrial ventricular valves (correct)
  • The second heart sound represents which portion of the cardiac cycle?

    <p>closing of the semilunar valves</p> Signup and view all the answers

    The cardiac centers are located in which area of the brain?

    <p>medulla oblongata</p> Signup and view all the answers

    Which of the cardiovascular system's circuits has blood poor in oxygen in its arteries?

    <p>Pulmonary circuit</p> Signup and view all the answers

    The pericardial cavity is located in between the

    <p>visceral and parietal layers of the serous pericardium</p> Signup and view all the answers

    The posterior interventricular sulcus

    <p>is a groove between the ventricles on the posterior region of the heart</p> Signup and view all the answers

    The papillary muscles attach to the cusps of the atrioventricular valves by means of the

    <p>tendinous cords</p> Signup and view all the answers

    The internal wall surface of each ventricle has large, smooth, irregular muscular ridges known as

    <p>trabeculae carneae</p> Signup and view all the answers

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