Quiz On Circulatory System: Test!

10 Questions | Total Attempts: 427

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Quiz On Circulatory System: Test!

Do you know how your circulatory system helps you? Your circulatory system delivers blood and nutrients throughout the body. Without the circulatory system, the blood does not receive oxygen, and the heart and lungs cannot do their jobs. It also transports hormones, eliminates bodily waste, and in humans, the blood is contained in a circuit of blood vessels. This amazing quiz will teach you about the circulatory system. Let’s get moving.


Questions and Answers
  • 1. 
    Which statement is true about transport in plants?
    • A. 

      Water is transported by the xylem in upward and downward directions.

    • B. 

      Sugars manufactured in the leaves are transported through the phloem by tension cohesion mechanism.

    • C. 

      Sugars always move from source to sink, in an upward direction.

    • D. 

      Sugars always move from sink to source, in a downward direction.

    • E. 

      Sugars are transported from source to sink, in any direction.

  • 2. 
    Which of the following is the primary pacemaker of the heart?
    • A. 

      Sinoatrial node

    • B. 

      Atriventricular node

    • C. 

      Bundle of His

    • D. 

      Purkinje fibers

    • E. 

      Ventricular node

  • 3. 
    What type of muscle lines the blood vessels?
    • A. 

      Skeletal muscle

    • B. 

      Striated muscle

    • C. 

      Cardiac muscle

    • D. 

      Smooth muscle

    • E. 

      Ligaments

  • 4. 
    Which of the following has an open circulatory system?
    • A. 

      Earthworm

    • B. 

      Grasshopper

    • C. 

      Cow

    • D. 

      Man

    • E. 

      Fish

  • 5. 
    Which structure is not a component of the circulatory system?
    • A. 

      Heart

    • B. 

      Lung

    • C. 

      Blood

    • D. 

      Artery

    • E. 

      Capillaries

  • 6. 
    In the systemic circuit, blood returns to the heart via
    • A. 

      Lymph vessels

    • B. 

      Arteries

    • C. 

      Capillaries

    • D. 

      Veins

    • E. 

      Arterioles

  • 7. 
    Which of the following carries oxygenated blood?
    • A. 

      Pulmonary artery

    • B. 

      Aorta

    • C. 

      Vein

    • D. 

      Venules

    • E. 

      Vena cavae

  • 8. 
    Which chamber of the heart has the thickest wall, since it pumps oxygenated blood to the systemic circuit?
    • A. 

      Right atrium

    • B. 

      Right ventricle

    • C. 

      Left atrium

    • D. 

      Left ventricle

  • 9. 
    To which of these structures will blood immediately flow from the vena cava?
    • A. 

      Aorta

    • B. 

      Right atrium

    • C. 

      Right ventricle

    • D. 

      Capillaries

    • E. 

      Left atrium

  • 10. 
    Which of the following is NOT correct about capillaries?
    • A. 

      Capillaries are the smallest blood vessels.

    • B. 

      Gas exchange occurs via capillaries.

    • C. 

      Exchange of nutrients occurs in capillaries.

    • D. 

      Capillaries are covered by several layers of epithelial tissue.

    • E. 

      None of the above

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