Circulatory System Quiz 569 (20 MCQs)

Quiz Instructions

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1. Which is the only vein which carry pure blood

Correct Answer: B) Pulmonary Vein.

2. What is the role of Circulatory system in our body?

Correct Answer: D) All of the above.

3. A dome-shaped sheet of tissue

Correct Answer: B) Diaphragm.

4. A chronic disease characterized by abdominal thickening and hardening of the arterial walls with resulting loss of elasticity

Correct Answer: A) Arteriosclerosis.

5. The iron-containing protein of the red blood cells; serves to carry oxygen from the lungs to the tissues

Correct Answer: D) Hemoglobin.

6. What does a sphygmomanometer do?

Correct Answer: B) Measures your blood pressure.

7. The main purpose of red blood cells is to .....

Correct Answer: B) Carry gases, wastes and nutrient.

8. Are smallest blood vessels in the circulatory system.

Correct Answer: C) Capillaries.

9. Which vein brings blood from the upper part of the body?

Correct Answer: B) Superior vena cava.

10. What do you call to the thin tissue that covers the lungs?

Correct Answer: B) Pleura.

11. The flow of blood from the heart to the lungs is called

Correct Answer: D) Pulmonary circulation.

12. The yellowish, liquid part of blood that transports blood cells

Correct Answer: A) Plums.

13. How many red blood cells do we have in each mL of our blood? (assuming our hematocrit is normal)

Correct Answer: B) 4.5-6 million.

14. ..... is the blood vessel that carries blood away from the heart.

Correct Answer: C) Artery.

15. Fight bacteria and viruses by entering infected tissue, destroying bacteria/viruses and engulfing dead/damaged blood cells

Correct Answer: A) Leukocytes.

16. What is the effect of increasing light intensity in transpiration?

Correct Answer: B) It increases transpiration rates.

17. The ..... is the fluid component of the cardiovascular system.

Correct Answer: B) Lymph.

18. What are leukocytes also called?

Correct Answer: C) White Blood Cells.

19. The tricuspid valve separates the atrium and ventricle on which side of the heart?

Correct Answer: A) Right.

20. About how many pints of blood do you have in your body?

Correct Answer: B) 9.