Cardiovascular System Quiz!

3 Questions | Total Attempts: 27

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Cardiovascular System Quizzes & Trivia

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Questions and Answers
  • 1. 
    What is the circulatory system?
    • A. 

      The body's breathing system

    • B. 

      The body's system of nerves

    • C. 

      The body's food-processing system

    • D. 

      The body's blood-transporting system

  • 2. 
    From what source do cells get their food?
    • A. 

      Blood

    • B. 

      Oxygen

    • C. 

      Other cells

    • D. 

      Carbon dioxide

  • 3. 
    Why is oxygen important to blood and to the cells?
    • A. 

      Oxygen helps the blood to clot

    • B. 

      Oxygen brings food to the cells.

    • C. 

      Oxygen is necessary for cell growth and energy.

    • D. 

      Oxygen is not important -- carbon dioxide is the most important substance to the body.