Lecture 1: Circulation

41 Questions | Total Attempts: 64

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Circulatory System Quizzes & Trivia

Questions and Answers
  • 1. 
    The heart is inclosed within the ...
    • A. 

      Mediastinum

    • B. 

      Esophagus

    • C. 

      Coronary sinus

    • D. 

      Cardiac cava

  • 2. 
    The lub sound of the Lup-dub is related to the closing of the...
    • A. 

      Aortic valve

    • B. 

      SL valves

    • C. 

      AV valves

    • D. 

      Pulmonary valve

  • 3. 
    The electric signal going from the Sinoatrial node to the left atrium is called...
    • A. 

      Bundle of His

    • B. 

      Purkinje fibers

    • C. 

      Bachmanns bundle

    • D. 

      Left anterior fasicle

  • 4. 
    The muscle that pulls on the chordae tendineae is called...
    • A. 

      Myocardium

    • B. 

      Papillary muscle

    • C. 

      Cardiac muscle

    • D. 

      Endocardium

  • 5. 
    The 2 layers of pericardium are called...
    • A. 

      Visceral and parietal

    • B. 

      Visceral and endothelial

    • C. 

      Fibrous and Parietal

    • D. 

      Parietal and cardial

  • 6. 
    The apical impulse can be felt between which ribs?
    • A. 

      1-2

    • B. 

      2-3

    • C. 

      4-5

    • D. 

      5-6

  • 7. 
    The intraventricular septum has only a membranous part
    • A. 

      True

    • B. 

      False

  • 8. 
    What happends during the QRS-complex?
    • A. 

      Only atrial depolarization

    • B. 

      Ventricular depolarization and atrial repolarization

    • C. 

      Only atrial repolarization

    • D. 

      Atrial repolarization and ventricular repolarization

  • 9. 
    The 3 important coronary arteries are...
    • A. 

      Superior coronary artery, inferior coronary artery and posterior coronary artery

    • B. 

      Right coronary artery, left anterior descending artery and circumflex artery

    • C. 

      Circumflex artery, right anterior coronary artery and descending coronary artery

    • D. 

      Left posterior descending artery, circumflex artery and main coronary artery

  • 10. 
    The coronary veins empty into the superior vena cava
    • A. 

      True

    • B. 

      False

  • 11. 
    1.The pulmonary circuit 1. Right heart 2. Lungs 3. Left heart
    • A. 

      True

    • B. 

      False

  • 12. 
    Within which cavity is the heart inclosed?
    • A. 

      Thoracic cavity

    • B. 

      Abdominal cavity

    • C. 

      Mediastinum

  • 13. 
    Epicardium is continuous with the endothelial linings of the blood vessels leaving and entering the heart.
    • A. 

      True

    • B. 

      False

  • 14. 
    The function of the pericardial cavity is to:
    • A. 

      Reduce friction

    • B. 

      Support the beating heart

    • C. 

      Apply pressure to contracting ventricles

    • D. 

      Remove waste and Co2

  • 15. 
    The outer layer of the heart is:
    • A. 

      Myocardium

    • B. 

      Endocardium

    • C. 

      Epicardium

  • 16. 
    Connective tissue is electrically excitable.
    • A. 

      True

    • B. 

      False

  • 17. 
    The fibrous skeleton of the heart....
    • A. 

      Allows the heart to move in a relative friction free environment.

    • B. 

      Attaches the heart to surrounding structures.

    • C. 

      Limits the direct spread of action potentials across the heart to specific areas.

    • D. 

      Is often inflamed in pericarditis.

  • 18. 
    Interventricular septum seperates the atria from the ventricles
    • A. 

      True

    • B. 

      False

  • 19. 
    Which sinus drains blood from the heart?
    • A. 

      Ventral sinus

    • B. 

      Coronary sinus

    • C. 

      Myocardial sinus

  • 20. 
    The intrinsic conduction system of the heart is divided into five stages.
    • A. 

      True

    • B. 

      False

  • 21. 
    QRS-complex is the equivalent of:  
    • A. 

      Ventricular repolarization

    • B. 

      Depolarization wave from the SA node through the atria

    • C. 

      Ventricular depolarization and precedes ventricular contraction

  • 22. 
    What are the muscle bundles, which play a role in valve function called?
    • A. 

      Myocardium

    • B. 

      Papillary muscles

    • C. 

      Coronary muscles

    • D. 

      Angina pectoris

  • 23. 
    Do the circumflex artery supply both ventricles?
    • A. 

      True

    • B. 

      False

  • 24. 
    The "P wave" is?
    • A. 

      Depolarization wave from the SA node through the atria

    • B. 

      Ventricular depolarization and percedes ventricular contraction

    • C. 

      Ventricular repolarization

    • D. 

      Atrium depolarization

  • 25. 
    The purkinje fibers depolarize the contractile cells of both ventricles
    • A. 

      True

    • B. 

      False