Circulatory System Quiz 615 (20 MCQs)

Quiz Instructions

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1. What is true of pulmonary circulation?

Correct Answer: A) Carries deoxygenated blood to lungs to be oxygenated and oxygenated blood to the heart.

2. Guess what? After taking a refreshing trip through the lungs and loading up on oxygen, where does this rejuvenated blood head to next?

Correct Answer: B) Left atrium.

3. These are very fine tubes in which an artery branches

Correct Answer: B) Capillaries.

4. Heart with two atria but one ventricle (both oxygenated and deoxygenated blood are mixed) "Double Circulation"

Correct Answer: B) Reptile/Amphibian Heart.

5. The stomata are controlled by ' ..... ' shaped' guard cells

Correct Answer: B) Sausage.

6. Which of the following statements is true regarding the size of white blood cells compared to red blood cells?

Correct Answer: C) White blood cells are larger than red blood cells.

7. The white blood cells help the body

Correct Answer: C) Fights disease.

8. True or False:Blood carries Carbon Dioxide to the rest of our bodies.

Correct Answer: B) False.

9. Which is a measure of the electrical events that occur in a single heart beat?

Correct Answer: A) Electrocardiogram.

10. Which blood pressure reading would indicate low blood pressure (hypotension)? (a)

Correct Answer: C) A 80/50.

11. In the heart, Each side has an upper chamber ( Called ..... and a lower chamber ( called ..... ).

Correct Answer: A) Atrium, ventricle.

12. Which of the following is true of a vein? One, some or all answers could be correct?

Correct Answer: D) It contains valves.

13. ....., the liquid part of the blood, is mostly made of water.

Correct Answer: A) Plasma.

14. Which of the following statements about blood is false?

Correct Answer: B) Normal pH is 6.8 to 7.0.

15. What happens in pulmonary circulation

Correct Answer: A) Circulation to the lungs.

16. What body systems are working together with internal respiration (the gas exchange between the capillaries and alveoli) in the lungs?

Correct Answer: B) Respiratory & Circulatory.

17. Known as the natural pacemaker of the heart

Correct Answer: B) Sinoatrial node.

18. How do bacteria, or decomposers, help the ecosystem?

Correct Answer: B) Breaks down dead animals.

19. Which of the following does not carry oxygenated blood?

Correct Answer: C) Pulmonary Arteries.

20. Blood in the pulmonary artery:

Correct Answer: B) Deoxygenated.