Circulatory System Quiz 686 (20 MCQs)

Quiz Instructions

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1. Between the left atrium and the right atrium there is a partition called.....

Correct Answer: C) The septum of the courts.

2. Why do we breath harder when we exercise?

Correct Answer: D) Our muscles need oxygen.

3. The blood vessels in the circulatory system where the exchange of gas takes place are the .....

Correct Answer: D) Capillaries.

4. What causes the "lub" "dub" sound?

Correct Answer: D) Valves closing.

5. What condition is the loss of flexibility of the blood vessels which cause the heart to pump harder, also known as high blood pressure?

Correct Answer: C) Hypertension.

6. How do our lungs and heart work together in order to supply our body with oxygen?

Correct Answer: C) The lungs supply oxygen to the blood, and the heart forces the blood throughout the body.

7. You can measure your heart rate by pressing your fingertips on .....

Correct Answer: A) A pulse point.

8. What is the main important role of bicuspid and triscuspid valve as one of the main parts of the heart?

Correct Answer: A) They serve as the doors and prevent the back flow of the flood from the start.

9. Two branches of the trachea that leads to the right or left lung

Correct Answer: C) Bronchi.

10. The lower part of the septum is called the interatrial septum.

Correct Answer: B) False.

11. The heart

Correct Answer: C) It works day and night to pump blood to every part of your body.

12. William ..... was the first to understand how blood circulates throughout the body.

Correct Answer: B) Harvey.

13. Tiny vessels that connect the larger vessels and help exchange nutrients/wastes with cells.

Correct Answer: C) Capillaries.

14. Lower chamber on either side of the heart

Correct Answer: D) Ventricle.

15. Blood returns to the left side of the heart from the

Correct Answer: C) Lungs.

16. Closed

Correct Answer: C) To close.

17. These branch out smaller and smaller to make capillaries. *

Correct Answer: A) Arteries.

18. A strong, elastic vessel made of multiple layers of tissue would best be classified as a

Correct Answer: C) Artery.

19. Name the artery that leaves the left ventricle. *

Correct Answer: C) Aorta.

20. The human heart is a ..... muscle, meaning that it operates without conscious thought.

Correct Answer: B) Involuntary.