This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 100 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 100 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Endocardium A) Heart wall (3). B) Heart room. C) Heart valves (3). D) Cardiac nerves (3). Show Answer Correct Answer: A) Heart wall (3). 2. Epiglottis is the structure that opens or closes the trachea. A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 3. The role of the respiratory system is to bring what substance into the body? A) Red blood cells. B) Water. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: C) Oxygen. 4. As the blood move closer to the heart, the vein gets larger and larger. A) True. B) False. Show Answer Correct Answer: A) True. 5. Which chamber in the heart collects oxygen rich blood? A) Right Atrium. B) Left Ventricle. C) Left Atrium. D) Right Ventricle. Show Answer Correct Answer: C) Left Atrium. 6. What is the main function of your blood vessels? A) Carry blood around your body. B) Bring oxygen to your major organs. C) Pump blood through the circulatory system. D) Get rid of waste produced by the body. Show Answer Correct Answer: A) Carry blood around your body. 7. Vasoexpansion is the narrowing or constriction of the damaged blood vessels. A) True. B) False. Show Answer Correct Answer: B) False. 8. What is another name for white blood cells? A) Leukocytes. B) Erythrocytes. Show Answer Correct Answer: A) Leukocytes. 9. Which term represents the number of times the heart beats in 60 seconds? A) Heart rate. B) Stroke volume. C) Cardiac output. D) None of above. Show Answer Correct Answer: A) Heart rate. 10. Which side of the heart deals with oxygenated blood? A) Right. B) Left. Show Answer Correct Answer: B) Left. 11. What is the condition in which there is an insufficiency of red blood cells or hemoglobin in the blood? A) Hypertension. B) Anemia. C) Fever. D) Emphysema. Show Answer Correct Answer: B) Anemia. 12. What is the name of the movement felt by the blood passing through the blood vessels? A) Veins. B) Arteries. C) Pulse. D) None of above. Show Answer Correct Answer: C) Pulse. 13. Which of the below is not the main organ of the circulatory system? A) Heart. B) Lungs. C) Arteries. D) Veins. Show Answer Correct Answer: B) Lungs. 14. The five main parts of the circulatory system are? A) Heart, blood, nutrients, flakes, skin. B) Heart, blood, valves, crust, mantle. C) Heart, blood, veins, arteries, capillaries. D) Heart, blood, cells, skin, nerves. Show Answer Correct Answer: C) Heart, blood, veins, arteries, capillaries. 15. What are the upper chambers of the heart called? A) Atria (plural of atrium). B) Ventricles. Show Answer Correct Answer: A) Atria (plural of atrium). 16. The left atrium receives what type of blood from where? A) Oxygenated blood from the lungs. B) Deoxygenated blood from the body. C) Oxygenated blood from heart. D) Deoxygenated blood from the lungs. Show Answer Correct Answer: A) Oxygenated blood from the lungs. 17. The push of blood is called blood pressure. A) True. B) False. Show Answer Correct Answer: A) True. 18. Lymph is pale yellow in colour because of ..... A) Water. B) Plasma. C) Serum. D) None of the above. Show Answer Correct Answer: B) Plasma. 19. ..... are the blood cells that fight infections A) WBC. B) RBC. C) Platelets. D) Plasma. Show Answer Correct Answer: A) WBC. 20. These are the smallest blood vessels that pass blood from the arteries into the tissues and veins A) Arteries. B) Veins. C) Capillaries. D) Plasma. Show Answer Correct Answer: C) Capillaries. ← PreviousNext →Related QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books