Circulatory System Quiz 490 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Where does the vital exchange of gases occur in the lungs?

Correct Answer: B) Alveoli.

2. Which of the options below is a type of white blood cells?

Correct Answer: B) Lymphocytes.

3. So from top to bottom, a leaf's structure is

Correct Answer: B) Waxy cuticle and epidermis cellsPalisade cellsSpongy mesophyllEpidermis and cuticle, with stomata.

4. Blood becomes bright red in color because of the

Correct Answer: C) Amount of oxygen present.

5. Systolic pressure measures which of the following?

Correct Answer: C) Ventricular contraction.

6. What percentage of the population is RH positive?

Correct Answer: B) 85%.

7. What type blood vessel exchanges nutrients and oxygen in the tissues?

Correct Answer: C) Capillaries.

8. ..... help in the clotting of blood

Correct Answer: D) Platelets.

9. The blood leaves the heart to the body through the .....

Correct Answer: A) Aorta.

10. What is the name of the tissue that closes off the windpipe when you swollen so you do not choke?

Correct Answer: A) Epiglottis.

11. Wich is the name of the small area in the wall of the right atrium that control the hearth beat?

Correct Answer: A) Sinus node.

12. What do have if I have pain in the chest?

Correct Answer: B) Angina.

13. Arteries carry nutrient and oxygen rich blood ..... from the heart except the pulmonary artery.

Correct Answer: B) Away.

14. The heart doctor is called a .....

Correct Answer: C) Cardiologist.

15. The left side of the heart pumps the blood to the?

Correct Answer: A) Body.

16. ..... are the thinnest blood vessels

Correct Answer: C) Capillary.

17. The diagram shows a section through the heart. Which part pumps blood to the aorta?

Correct Answer: C) C.

18. Blood pressure in the pulmonary artery is: .....

Correct Answer: C) More than that in the pulmonary vein.

19. This picks up and delivers nutrients and wastes/helps fight diseases/and helps stop bleeding

Correct Answer: C) Blood.

20. When does the first step of digestion usually occur?

Correct Answer: B) When the food is chewed.