Life Science 5

33 Questions | Total Attempts: 24

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Life Science Quizzes & Trivia

Cardiovascular system


Questions and Answers
  • 1. 
    Which of the following best describes the overall function of the cardiovascular system (CVS) in the human body?
    • A. 

      Very important role in regulating blood glucose level;

    • B. 

      Very important role in the overall homeostasis of the body;

    • C. 

      very important role in the breakdown of fats in the diet;

    • D. 

      Very important role in regulating body temperature.

  • 2. 
    Which one of the following best describes the overall structure of the human CVS?
    • A. 

      a closed, single circulatory system

    • B. 

      an open, single circulatory system

    • C. 

      a closed, double circulatory system

    • D. 

      An open, double circulatory system

  • 3. 
    What is the role of the systemic circulation?
    • A. 

      transport of oxygenated blood to the tissues of the body

    • B. 

      Transport of de-oxygenated blood to the tissues of the body

    • C. 

      Transport of oxygenated blood from the lungs

    • D. 

      transport of de-oxygenated blood to the lungs

  • 4. 
    What is the role of the pulmonary circulation?
    • A. 

      transport of oxygenated blood to the tissues of the body;

    • B. 

      Transport of de-oxygenated blood to the tissues of the body;

    • C. 

      Transport of oxygenated blood to the lungs;

    • D. 

      transport of de-oxygenated blood to the lungs.

  • 5. 
    What are the three components of the human CVS?
    • A. 

      Heart, lymph vessels and blood;

    • B. 

      Heart, arteries and veins;

    • C. 

      Arteries, lymph vessels and veins;

    • D. 

      heart, blood vessels and blood

  • 6. 
    Which of the following best describes the overall structure of the heart?
    • A. 

      a four-chambered muscular organ with two types of internal chamber - two atria and two ventricles

    • B. 

      A three-chambered muscular organ with two types of internal chamber - one atrium and two ventricles;

    • C. 

      a four-chambered muscular organ with two types of internal chamber - two atria and two veins

    • D. 

      a four-chambered epithelial organ with two types of internal chamber - two atria and two ventricles.

  • 7. 
     Which of the following best describes the overall roles of the pericardium?
    • A. 

      Protection and defence

    • B. 

      Localisation and lubrication;

    • C. 

      Protection and lubrication

    • D. 

      Localisation and defence

  • 8. 
    What is the main role of all the valves in the human CVS?
    • A. 

      To ensure one-way flow of blood through the CVS;

    • B. 

      To prevent oxygenated and de-oxygenated blood from mixing together

    • C. 

      To ensure oxygenated and de-oxygenated blood mix together;

    • D. 

      To prevent the blood supply to the brain from being over-loaded.

  • 9. 
     How many valves control the flow of blood into and out of the ventricles of the heart?
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 10. 
    Which valves lie between the atria and the ventricles?
    • A. 

      Venous valves

    • B. 

      right and left semilunar valves

    • C. 

      right and left atrio-ventricular valves

    • D. 

      Right and left pulmonary valves.

  • 11. 
    Which valve guards the exit from the right ventricle?
    • A. 

      Right atrio-ventricular valve

    • B. 

      Pulmonary valve

    • C. 

      Tricuspid valve

    • D. 

      Aortic valve

  • 12. 
    Which of the following tissue types makes up the greater part of the heart wall?
    • A. 

      Epithelium;

    • B. 

      Muscle

    • C. 

      Nervous tissue

    • D. 

      Connective tissue

  • 13. 
    Which of the following is  true concerning the myocardium?
    • A. 

      its cells are branched;

    • B. 

      Its cells are connected by intercalated discs;

    • C. 

      its structure is crucial in ensuring the co-ordinated pumping action of the heart

    • D. 

      All of the above.

  • 14. 
     Blood from the right atrium flows into the:
    • A. 

      Left atrium

    • B. 

      Left ventricle;

    • C. 

      Right ventricle;

    • D. 

      pulmonary veins

  • 15. 
    Blood from the right ventricle flows into the:
    • A. 

      left atrium

    • B. 

      left ventricle

    • C. 

      Aorta

    • D. 

      None of these

  • 16. 
    Blood from the left atrium flows into the:
    • A. 

      Right atrium

    • B. 

      Aorta

    • C. 

      Pulmonary arteries

    • D. 

      Left ventricle

  • 17. 
     Blood from the left ventricle flows into the
    • A. 

      Left atrium

    • B. 

      Aorta

    • C. 

      Pulmonary arteries;

    • D. 

      Right atrium

  • 18. 
     Which of the following best describes the principal arteries that are associated with the human heart?
    • A. 

      Aorta; carotid arteries;

    • B. 

      Angina; pulmonary arteries

    • C. 

      Aorta; pulmonary arteries

    • D. 

      Atrium; pelvic arteries

  • 19. 
    Which of the following lists the principal veins associated with the human heart?
    • A. 

      Superior and inferior venae cavae; portal veins

    • B. 

      Anterior and posterior venae cavae; cardiac veins

    • C. 

      hepatic vein; jugular veins;

    • D. 

      Superior and inferior venae cavae; pulmonary veins;

  • 20. 
    What are the five main types of blood vessel?
    • A. 

      Atria, veins, venules, capillaries and arteries;

    • B. 

      Arteries, capillaries, venules, arterioles, veins

    • C. 

      Arteries, arterioles, capillaries, ventricles, veins

    • D. 

      Sinuses, capillaries, arteries, veins, ventricles.

  • 21. 
    Which one of the following is true with respect to arteries and veins?
    • A. 

      Arteries carry blood towards the heart; veins carry blood away from the heart;

    • B. 

      Arteries carry blood that is poor in oxygen; veins carry blood rich in oxygen;

    • C. 

      Arteries carry blood that is rich in oxygen; veins usually carry blood rich in fat;

    • D. 

      Arteries carry blood away from the heart; veins carry blood towards the heart

  • 22. 
    Why is the elasticity of the walls of large arteries important?
    • A. 

      It ensures blood flow is maintained when the heart is not contracting;

    • B. 

      it ensures the appropriate distribution of blood to different tissues

    • C. 

      It ensures arteries can contract actively;

    • D. 

      It prevents too much blood accumulating in the veins.

  • 23. 
    Which of the following blood vessel types is the only one in which there is exchange of materials between the blood within them and tissue fluid?
    • A. 

      Arteriole

    • B. 

      Venule

    • C. 

      Vein

    • D. 

      Capillary

  • 24. 
    Which one of the following statements is FALSE?
    • A. 

      Control of blood pressure is not important

    • B. 

      Several different mechanisms are used to control blood pressure;

    • C. 

      Blood pressure control systems work on both heart and blood vessels;

    • D. 

      Control of blood pressure is cery important

  • 25. 
     Which of the following blood vessel types is especially important in regulating blood pressure?
    • A. 

      Artery

    • B. 

      Venule

    • C. 

      Ventricle

    • D. 

      Arteriole