Circulatory System Quiz 104 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Tube that connects the pharynx with the lungs

Correct Answer: C) Trachea.

2. Which blood cells are highest in number?

Correct Answer: D) Erythrocytes.

3. The ..... pumps blood to the lungs through pulmonary arteries.

Correct Answer: B) Right ventricle.

4. A condition in which the force of your blood against your artery walls is high

Correct Answer: C) High Blood Pressure.

5. This is a gas our cells need to survive.

Correct Answer: C) Oxygen.

6. Myocardial Infarction is caused by:

Correct Answer: D) Sudden interruption in blood flow towards a portion of heart.

7. What is the main function of erythrocytes?

Correct Answer: B) Carry oxygen.

8. TYPES OF BLOOD VESSELS:* Take nutrients to the cells and eliminate waste.

Correct Answer: C) Capillaries.

9. Alveoli have very thick walls to maximise the distance that gases have to move.

Correct Answer: B) False.

10. The tube that is in your throat that is part of the respiratory system is called the

Correct Answer: B) Trachea.

11. Where does deoxygenated blood enter the heart?

Correct Answer: A) Superior and inferior vena cava.

12. A diaphragm contracts downward, creating a vacuum that causes a rush of fresh air into the .....

Correct Answer: B) Lungs.

13. What should be reduced in the diet to maintain good health?

Correct Answer: A) Sugar and sweets.

14. Cardiovascular health can be maintained by strengthening the heart muscle through regular?

Correct Answer: D) Exercise.

15. The heart, blood, and blood vessels make up the ..... system.

Correct Answer: B) Circulatory.

16. The top 2 chambers of the heart ..... blood and are called atria.

Correct Answer: C) Receive.

17. What tubes carry water and nutrients up from the roots?

Correct Answer: C) Xylem.

18. Where in your body can you find blood vessels? Choose the best answer.

Correct Answer: D) Virtually everywhere.

19. Which of the descriptions following is referred to leucocytes?

Correct Answer: C) Have nucleus and mitochondria.

20. The chamber which receives oxygenated blood from lungs

Correct Answer: B) Left auricle.