Circulatory System Quiz 2 (25 MCQs)

Quiz Instructions:

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1. The FREQUENCY of heart contractions is _____

2. The pulmonary artery connects

3. Which of the following delivers oxygen to cells?

4. The lower chambers of the heart are called the _____

5. A blood vessel that carries blood back to the heart.

6. Platelets help with

7. The oxygenated and deoxygenated blood mix inside the heart.

8. Through which of the following does deoxygenated blood enters the heart?

9. What is percentage of people with positive Rh

10. The name of bright red blood is called

11. RBC live for about:

12. Which type of blood vessel has the thickest layer of smooth muscle in its walls?

13. What part of blood helps your blood clot?

14. Which of the following fights off germs and diseases?

15. Which of the following carries the oxygen to the different parts of the body?

16. Valves are present inside.

17. The _____ is/are responsible for assisting in the immune system's defense against pathogens.

18. The molecule that combines with oxygen to transport it

19. What is the function of the circulatory system?

20. The largest artery in the body

21. How can the circulatory system promote heat retention/conservation, such as on a cold day?

22. What is the function of red blood cell?

23. The _____ bring blood with carbon dioxide to the heart and lungs, then the _____ pump oxygenated blood back to the body.

24. What refers to the heart sound?

25. The heat produced in various parts of the body is distributed evenly by.