Lecture 1: Circulation

41 Questions

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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

  • 26. 
    The bundle branches conduct the impulses through the interventricular septum
    • A. 

      True

    • B. 

      False

  • 27. 
    The heart muscles contracts and pumpes
    • A. 

      4000 L/day

    • B. 

      3000 L/day

    • C. 

      9000L/day

    • D. 

      8000L/day

  • 28. 
    How many times does the heart beat in a normal person each day?
    • A. 

      65 000

    • B. 

      104 000

    • C. 

      110 000

    • D. 

      145 000

  • 29. 
    The Vagus Nerve (X) is a part of the sympathetic nervous system
    • A. 

      True

    • B. 

      False

  • 30. 
    The average diastolic pressure in the aorta are 80mmHG?
    • A. 

      True

    • B. 

      False

  • 31. 
    The P wave is?
    • A. 

      Ventricular depolarization and atrial repolarization

    • B. 

      Atrial depolarization

    • C. 

      Ventricular repolarization

    • D. 

      Option 4

  • 32. 
    The second (heart sound - S2) occurs as the SL valves snap shut
    • A. 

      True

    • B. 

      False

  • 33. 
    The chordae tendinae attaches to the aortic and pulmonary valves
    • A. 

      True

    • B. 

      False

  • 34. 
    The cardioinhibitory center lies in the.....?
    • A. 

      Sympathetic chain

    • B. 

      Spinal cord

    • C. 

      Midbrain

    • D. 

      Medulla oblongata

  • 35. 
    What is NOT true about the valves
    • A. 

      The left atrio valve, with two flaps, is called the mitral valve

    • B. 

      The right atrio valve, the tricuspid valve, har three flexible cups

    • C. 

      The mitral valve is sometimes called the bicuspid valve

    • D. 

      The aortic and pulmonary valves are also known as atrioventricular valves

  • 36. 
    epicardium is the visceral layer of pericardium?
    • A. 

      True

    • B. 

      False

  • 37. 
    Blood enters the right atrium via coronory sinus. where does the blood come from?
    • A. 

      Pericardium

    • B. 

      Epicardium

    • C. 

      Myocardium

    • D. 

      Endocardium

  • 38. 
    right ventricle froms the apex of the heart?
    • A. 

      True

    • B. 

      False

  • 39. 
    veins of the pulmonary circuit pump is carrying....
    • A. 

      Oxygen poor blood to the heart

    • B. 

      Oxygen rich blood to the heart

    • C. 

      Oxygen poor blood from the heart

    • D. 

      Oxygen rich blood from the heart

  • 40. 
    circumflex artery supplies the....
    • A. 

      Interventricular septum

    • B. 

      Myocardium

    • C. 

      Right atrium and ventricle

    • D. 

      Left atrium and ventricle

  • 41. 
    systemic circuit is supplied by the right ventricle
    • A. 

      True

    • B. 

      False