This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 485 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 485 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This type of vessel carries blood BACK TO the heart: A) Vein. B) Shirt. C) Hair. D) None of above. Show Answer Correct Answer: A) Vein. 2. Select the type of cells, present in blood, whose main function is to fight against diseases by destroying harmful bacteria and other foreign material. A) RBCs. B) WBCs. C) Platelets. D) All of these. Show Answer Correct Answer: B) WBCs. 3. What is Part F? A) Left ventricle. B) Left atrium. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: B) Left atrium. 4. The ..... carry impure blood back to the heart. A) Arteries. B) Capillaries. C) Veins. D) Vessels. Show Answer Correct Answer: C) Veins. 5. The heart works similarly to a A) River. B) Joint. C) Pump. D) Hinge. Show Answer Correct Answer: C) Pump. 6. Which is the largest artery in the human body? A) Carotid Artery. B) Aorta. C) Subclavin Artery. D) Femoral Artery. Show Answer Correct Answer: B) Aorta. 7. Provides structural support for the vein, also allows widening or narrowing of blood vessels to increased or decreased blood pressure. A) Elastin Fibers. B) Lumen. C) Smooth Muscle Layer. D) Connective Tissue. Show Answer Correct Answer: C) Smooth Muscle Layer. 8. What are the surface molecules on an erythrocyte called? A) Antibodies. B) Agglutinins. C) Agglutinogens. D) Antiblood. Show Answer Correct Answer: C) Agglutinogens. 9. What is the largest and main artery of the Circulatory System? A) Superior vena cava. B) Inferior vena cava. C) Aorta. D) Pulmonary Artery. Show Answer Correct Answer: C) Aorta. 10. The complete stoppage of the heart's activity is called ..... A) Hypertension. B) Cardiac stoppage. C) Cardiac seizure. D) Cardiac arrest. Show Answer Correct Answer: D) Cardiac arrest. 11. During a biology class, Aiden learns about the respiratory system. In which part of the lungs does oxygen move from the lungs to the blood? A) Alveoli. B) Bronchi. C) Trachea. D) Diaphragm. Show Answer Correct Answer: A) Alveoli. 12. How many times does the heartbeat in a year? A) 1 million. B) 10 million. C) 35 million. D) 40 million. Show Answer Correct Answer: C) 35 million. 13. Which one of the following blood groups produce no antibodies? A) A. B) B. C) AB. D) O. Show Answer Correct Answer: C) AB. 14. The blood vessel that has valves at intervals ..... A) Capillary. B) Artery. C) Vein. D) None of the above. Show Answer Correct Answer: C) Vein. 15. Why is the heart and circulatory system described as a "double loop" ? A) Blood goes to the hear and lungs. B) First loop is oxygenated poor blood and the second loop is oxygenated rich blood. C) First loop is oxygenated rich blood and the second loop is oxygenated poor blood. D) First loop is blood coming back to the heart from the upper body and the second loop is blood coming back to the heart from the lower body. Show Answer Correct Answer: B) First loop is oxygenated poor blood and the second loop is oxygenated rich blood. 16. If one of your parents is blood type A and the other is type B, which of the following blood types could you be? A) O. B) AB. C) A or B. D) Any of these. Show Answer Correct Answer: D) Any of these. 17. This is the term for when the heart ventricles contract and push blood out. A) Fibrillation. B) Diastole. C) Systole. D) None of above. Show Answer Correct Answer: C) Systole. 18. What blood type is known as the universal donor? A) A. B) B. C) O. D) AB. Show Answer Correct Answer: C) O. 19. The liquid part of the blood. It carries digested food and important materials to the cells. A) Plasma. B) Platelets. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: A) Plasma. 20. Our diaphragm ..... by moving down giving extra space for our lungs to expand when we inhale. A) Contracts. B) Relaxes. C) Repels. D) Recoil. Show Answer Correct Answer: A) Contracts. ← 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