Circulatory System Quiz 336 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. -Large lumen-No valve-One cell thick

Correct Answer: B) Capillary.

2. Who was the person who discovered the blood groups?

Correct Answer: C) Karl Landsteiner.

3. There are three types of vessels:

Correct Answer: C) Arteries, veins and capillaries.

4. True or false? When you count pulse beats, you are also counting heartbeats.

Correct Answer: A) True.

5. Lower chamber of the heart that pumps blood out

Correct Answer: B) Ventricle.

6. Group 0 has

Correct Answer: D) No antigens on the red blood cells and anti-AB antibodies in the plasma.

7. The veins carry the blood

Correct Answer: B) Into the heart.

8. Why do arteries have very thick muscle layers?

Correct Answer: C) To squeeze the blood around the body.

9. The left and right pulmonary veins carry blood to which organ?

Correct Answer: A) Heart.

10. Blood flows from left atrium to left ventricle through which valve?

Correct Answer: A) Mitral.

11. What begins the process of mechanical breakdown?

Correct Answer: A) The mouth.

12. Effect of blood pressure on arteries .....

Correct Answer: C) More is more.

13. The oxygenated bllod return to the heart through .....

Correct Answer: B) Via pulmonary vein.

14. The oxygen-carrying protein in blood

Correct Answer: D) Hemoglobin.

15. Which of these vessels carry unoxygenated blood back to the heart?

Correct Answer: A) Veins.

16. The Respiratory System is the body's:

Correct Answer: A) Breathing system.

17. What organ removes waste from blood?

Correct Answer: B) Kidneys.

18. It is also known as a windpipe a hollow tube where air passes through.

Correct Answer: C) Trachea.

19. A pulse is the measure of blood against the wall of an artery.

Correct Answer: A) True.

20. What is the function of the circulatory system when blood carries away waste materials like CO2 called?

Correct Answer: B) Elimination.