Circulatory System Quizzes & Trivia

Woosh, woosh, woosh, woosh. If you block your ears, this is what you hear. What are you hearing? Is it a bird, is it a plane? Nope, it’s your blood flowing through your body. But how...why...when...what?! These quizzes are on the circulatory system, and if you know anything about what makes up almost everything in your body, then these quizzes are for you.

With arteries, capillaries, veins and the heart, you'll be pumped to know that nothing has been left out. Prepare to have your heart pounding in your head, as you attempt to solve the quizzes on the circulatory system. Don't blush if you get any answers wrong though!
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The circulatory system is a complex network of vital units of the body, such as blood, blood vessels, and the heart, which allows blood to circulate nutrients, oxygen, carbon dioxide, etc. to and from the cells so that the body...

Questions: 30  |  Attempts: 54384   |  Last updated: Aug 5, 2020
  • Sample Question
    The circulatory system is composed of:

Questions: 5  |  Attempts: 6272   |  Last updated: Nov 7, 2017
  • Sample Question
    What is the main part of the circulatory system?

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...

Questions: 25  |  Attempts: 2388   |  Last updated: Oct 23, 2018
  • Sample Question
    What is the main artery of the body?

Questions: 33  |  Attempts: 973   |  Last updated: Sep 1, 2020
  • Sample Question
    Which type of blood is bright red?

This is a Quiz. Take It. NOW.

Questions: 20  |  Attempts: 8338   |  Last updated: Jan 15, 2013
  • Sample Question
    What substance in RED blood cells carries oxygen to the cells?

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Circulatory System Questions & Answers

What happens when a clot occurred in an undamaged blood vessel?
If a person has a damaged blood vessel, then it will most likely spew out blood. Sometimes, if someone gets stabbed, the there is a cut in the skin and in the blood vessel. This would cause someone to bleed a lot. It would take a lot of care to make
What is the circulatory system is composed of?
The circulatory system is composed of. The heart, blood, and blood vessels.
What is the circulatory system composed of?
The circulatory system is correctly known as the vascular system and it comprises the vessels that carry blood and lymph through the body. These vessels are called arteries, that carry blood away from heart, veins that carry blood towards the heart a
Why is oxygen important for the blood and cells?
It is not a surprise that humans need oxygen in order to survive. What are the benefits that oxygen can provide to the body? Oxygen is needed by the cells because it will promote cell growth and regeneration. Take note that the cells need to be healt
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