Basic Heart And Circulatory System

25 Questions

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Circulatory System Quizzes & Trivia

The heart is the most important organ in the human body as if it is unable to pump air someone’s life will either be cut short or become extremely difficult to maintain. The quiz below is on the heart and circulatory system and is set to see how well you can identify the parts of the heart.


Questions and Answers
  • 1. 
    What is the main artery of the body?
    • A. 

      Pulmonary vein

    • B. 

      Aorta

    • C. 

      Vena Cava

    • D. 

      Pulmonary arch

  • 2. 
    • A. 

      Bicuspid valve

    • B. 

      Tricuspid valve

    • C. 

      Aortic Semilunar valve

    • D. 

      Pulmonary Semilunar valve

    • E. 

      Tubular valve

  • 3. 
  • 4. 
    What is the myocardium?
    • A. 

      Heart valves

    • B. 

      Heart veins

    • C. 

      Heart arteries

    • D. 

      Heart muscle

  • 5. 
    What is the name of the colorless and odorless gas that our bodies require to live?
  • 6. 
    The Left Ventricle pumps blood to the ......
    • A. 

      Right ventricle

    • B. 

      Right atrium

    • C. 

      Pulmonary vein

    • D. 

      Aorta

  • 7. 
    What is the name for the tubular structures that mainly carry deoxygenated blood throughout the body?
  • 8. 
    The muscular, tubular structures that carry oxygenated blood throughout the body are called?
    • A. 

      Veins

    • B. 

      Arteries

    • C. 

      Vesicles

    • D. 

      Ventricles

  • 9. 
    A membranous tissue that controls the direction of flow of blood in the heart is called a ___________
  • 10. 
    Latin for 'lung'
    • A. 

      Cardium

    • B. 

      Pulmonary

    • C. 

      Vesicle

    • D. 

      Colon

    • E. 

      Vascular

  • 11. 
    Blood is pumped from the left atrium to the
    • A. 

      Right ventricle

    • B. 

      Right atrium

    • C. 

      Pulmonary artery

    • D. 

      Left ventricle

  • 12. 
    The two main (biggest) chambers of the heart are called?
    • A. 

      Atrium

    • B. 

      Ventricles

    • C. 

      Veins

    • D. 

      Arteries

  • 13. 
    The two uppermost (and smallest) chambers of the heart are called?
    • A. 

      Arteries

    • B. 

      Vesicles

    • C. 

      Valves

    • D. 

      Atria or atrium

  • 14. 
    How much oxygen is in the air we breath?
    • A. 

      15%

    • B. 

      19%

    • C. 

      20%

    • D. 

      25%

    • E. 

      23%

  • 15. 
    The ONLY veins that carry oxygenated blood are called the......
    • A. 

      Superior veins

    • B. 

      Blue veins

    • C. 

      Red veins

    • D. 

      Pulmonary veins

    • E. 

      Aortic veins

  • 16. 
    Blood flows from the heart to the arteries and then from the arteries to the....
    • A. 

      Venules

    • B. 

      Arterioles

    • C. 

      Veins

    • D. 

      Capillaries

  • 17. 
    Blood returns to the heart from the capillaries via......
    • A. 

      Arterioles, veins, vena cava

    • B. 

      Veins, venules, vena cava

    • C. 

      Venules, veins, aorta

    • D. 

      Venules, veins, vena cava

    • E. 

      Arterioles, arteries, aorta

  • 18. 
    What blood cell is responsible for making blood red?
    • A. 

      Red cells

    • B. 

      White cells

    • C. 

      Platelets

    • D. 

      Plasma

  • 19. 
    Plasma makes up approx. how much of your blood?
    • A. 

      25%

    • B. 

      75%

    • C. 

      65%

    • D. 

      55%

  • 20. 
    Red blood cells are made where?
    • A. 

      The spleen

    • B. 

      The pancreas

    • C. 

      Bone marrow

    • D. 

      The liver

  • 21. 
    Which blood cells fight infection?
    • A. 

      Red

    • B. 

      White

    • C. 

      Platelets

  • 22. 
    Which blood cells cause blood to clot and are considered sticky?
    • A. 

      Red

    • B. 

      White

    • C. 

      Platelets

    • D. 

      Plasma

  • 23. 
    Approx. how much of your plasma is water?
    • A. 

      50%

    • B. 

      70%

    • C. 

      25%

    • D. 

      92%

  • 24. 
    The pus that you find around some infections is made up of what?
    • A. 

      Dead red blood cells

    • B. 

      Live white blood cells

    • C. 

      Dead white blood cells

    • D. 

      Dead platelets

    • E. 

      Live platelets

  • 25. 
    LAST ONE!  Oxygen and nutrients are exchanged with the bodies tissues where?
    • A. 

      The arteries

    • B. 

      The venules

    • C. 

      The arterioles

    • D. 

      The capillaries

    • E. 

      The lungs