Cardiac Conduction System

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Questions and Answers

Where is the sinuatrial node located in the heart?

  • To the right of the superior vena cava
  • At the junction of the atria and ventricles
  • At the lower end of the crista terminalis
  • To the left of the superior vena cava (correct)

What prevents random propagation of conduction to the ventricles in the heart?

  • The tricuspid valve
  • The interventricular septum
  • The figure-of-eight fibrous skeleton (correct)
  • The moderator band

Where does the bundle of His run through in the heart?

  • The moderator band into the right ventricle
  • The tricuspid valve into the left ventricle
  • The fibrous skeleton into the interventricular septum (correct)
  • The crista terminalis into the atria

What divides into left and right bundles to supply each ventricle in the heart?

<p>The bundle of His (C)</p> Signup and view all the answers

Where is the pacemaker of the heart located?

<p>At the upper end of the crista terminalis (A)</p> Signup and view all the answers

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