Cardiac Muscle and Heart Valve Function Quiz
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Questions and Answers

Which type of muscle is cardiac muscle?

  • Atrial muscle (correct)
  • Venous muscle
  • Skeletal muscle
  • Smooth muscle

    • What are the three major types of cardiac muscle?

  • Skeletal, atrial, ventricular
  • Atrial, ventricular, smooth
  • Skeletal, ventricular, smooth
  • Atrial, ventricular, smooth

    • What is the regulation of heart pumping mechanism by the Frank-Starling mechanism and the autonomic nervous system?

  • Excitation-contraction coupling
  • Changes in pressure, volume, and flow during the cardiac cycle
  • Regulation of heart pumping by neural and hormonal factors (correct)
  • Effects of potassium and calcium ions on heart function

    • What is the work output of the heart?

    <p>Contraction of the heart</p> Signup and view all the answers

    What are the effects of potassium and calcium ions and temperature on heart function?

    <p>Generation of action potentials</p> Signup and view all the answers

    Which of the following is a characteristic that differentiates cardiac muscle from skeletal muscle?

    <p>All of the above</p> Signup and view all the answers

    During the cardiac cycle, which of the following changes occur?

    <p>Pressure, volume, and flow</p> Signup and view all the answers

    What is the work output of the heart?

    <p>The amount of blood pumped by the heart</p> Signup and view all the answers

    What does the volume-pressure diagram represent?

    <p>The cardiac cycle events</p> Signup and view all the answers

    Which mechanism regulates heart pumping?

    <p>Frank-Starling mechanism</p> Signup and view all the answers

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