Anatomy Quiz - Cardiac Conduction

5 Questions | Total Attempts: 4692

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Anatomy Quiz - Cardiac Conduction

Students are ready to proceed to Unit #2 once they have achieved a score of at least an 80% on the Anatomy quiz.


Questions and Answers
  • 1. 
     What structure serves as the pacemaker in the heart? 
    • A. 

      AV node

    • B. 

      Bundle of His

    • C. 

      SA node

    • D. 

      Purkinje fibers

  • 2. 
    The fibers that conduct the impulse to the ventricles are known as the:
    • A. 

      SA node

    • B. 

      AV bundle

    • C. 

      Right bundle branch

    • D. 

      Purkinje fibers

  • 3. 
     The SA node is located: 
    • A. 

      In the lower left ventricle wall

    • B. 

      In the septum between the atria and ventricles

    • C. 

      In the septum between the left and right ventricles

    • D. 

      In the upper right atrial wall

  • 4. 
    At rest, a new impulse is generated by the pacemaker at the rate of about ___ per minute:
    • A. 

      170

    • B. 

      75

    • C. 

      25

    • D. 

      125

  • 5. 
    The main function of the cardiac conduction pathway is:
    • A. 

      To ensure coordinated muscle contraction in the chambers and effective pumping of blood

    • B. 

      To increase and decrease the heart rate in response to exercise

    • C. 

      To ensure that the heart muscle in the atria and ventricles all contracts at the same time

    • D. 

      None of the above