The Sinoatrial Node
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Questions and Answers

Which structure in the heart is responsible for producing the impulses for heartbeat?

  • Atrial muscle
  • Sinoatrial node (correct)
  • Atrioventricular node
  • Pacemaker cells

    • Who named the sinoatrial node as the pacemaker of the heart?

  • Dr. John Smith
  • Sir William Harvey
  • Lewis Sir Thomas (correct)
  • Dr. Michael Ellis

    • Where is the sinoatrial node located in the heart?

  • Superior vena cava
  • Right ventricle
  • Left atrium
  • Right atrium (correct)

    • Which part of the heart is continuous with the fibers of the sinoatrial node?

    <p>Atrial muscle</p> Signup and view all the answers

    Why is the sinoatrial node referred to as the pacemaker of the heart?

    <p>It has the highest rhythmicity compared to other parts of the heart</p> Signup and view all the answers

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