This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 316 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 316 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Vessels that contain valves to prevent back flow of blood are? A) Arteries. B) Arterioles. C) Veins. D) Aorta. Show Answer Correct Answer: C) Veins. 2. Smallest blood vessel; brings nutrients and oxygen to the tissues and absorbs carbon dioxide and waste products A) Capillary. B) Artery. C) Vein. D) Vena cava. Show Answer Correct Answer: A) Capillary. 3. Someone who has Type O blood has what for antibodies? A) No antibodies. B) A antibodies. C) B antibodies. D) A and B antibodies. Show Answer Correct Answer: D) A and B antibodies. 4. What is the purpose of white blood cells in the immune system? A) Transport oxygen throughout the body. B) Produce insulin to regulate blood sugar levels. C) Break down food for digestion. D) Defend the body against infections and foreign substances. Show Answer Correct Answer: D) Defend the body against infections and foreign substances. 5. Circuit of blood that carries blood between the heart and the rest of the body- A) Diastolic pressure. B) Systemic circuit. C) Systolic pressure. D) Pulmonary circuit. Show Answer Correct Answer: B) Systemic circuit. 6. Which of these is true of all veins? A) They carry blood towards the heart. B) They carry blood away from the heart. C) They are oxygenated. D) They are deoxygenated. Show Answer Correct Answer: A) They carry blood towards the heart. 7. How do animals help keep plants alive in an ecosystem? A) Eats them. B) Gives off Oxygen. C) Nothing. D) Gives off Carbon Dioxide. Show Answer Correct Answer: D) Gives off Carbon Dioxide. 8. The ..... arteries carry blood and oxygen to all parts of the heart. A) Coronet. B) Coronary. C) Corridor. D) None of above. Show Answer Correct Answer: B) Coronary. 9. The sites of exchange that allow materials delivered by the blood to enter the tissues are called: A) Arteries. B) Veins. C) Capillaries. D) Plasma. Show Answer Correct Answer: C) Capillaries. 10. Blood moves from arteries to veins through tiny blood vessels called ..... A) Blood. B) Oxygen. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 11. The heart has ..... Chambers, ..... atria, and ..... ventricles. A) 2, 2, and 2. B) 4, 2, and 2. C) 3, 3, and 2. D) 1, 2, and 3. Show Answer Correct Answer: B) 4, 2, and 2. 12. What is the main function of the pulmonary artery? A) Carry oxygenated blood to the body. B) Carry deoxygenated blood to the lungs. C) Deliver oxygen and glucose to the heart. D) None of the above. Show Answer Correct Answer: B) Carry deoxygenated blood to the lungs. 13. Which disease is hardening of the arteries due to plaque buildup? A) Atherosclerosis. B) Myocardial Infarction. C) Prolapsed Valves. D) Arrhythmia. E) High Blood Pressure. Show Answer Correct Answer: A) Atherosclerosis. 14. Avascular A) Without blood or lymph vessels. B) With blood and lymph vessels. C) Blood vessels that carry blood away from the heart. D) Blood vessels that carry blood to the heart. Show Answer Correct Answer: A) Without blood or lymph vessels. 15. A heart rate less than 60 would be considered A) Eucardia. B) Tachycardia. C) Bradycardia. D) Cardiologist. Show Answer Correct Answer: C) Bradycardia. 16. Besides oxygen and carbon dioxide, what else is carried by the blood in the circulatory system? A) Nerve impulses. B) Nutrients. C) Tears. D) Mt. Dew. Show Answer Correct Answer: B) Nutrients. 17. What is the main role of phagocytes? A) Produce T cells. B) Produce B cells. C) Produce antibodies. D) Engulf and digest microorganisms. Show Answer Correct Answer: D) Engulf and digest microorganisms. 18. In which group of organisms, open vascular system is seen? A) Insects. B) Animals. C) Birds. D) Humans. Show Answer Correct Answer: A) Insects. 19. Veins carry ..... to the heart: A) Deoxygenated blood (blood without oxygen). B) Oxygenated blood (blood with oxygen). Show Answer Correct Answer: A) Deoxygenated blood (blood without oxygen). 20. The largest blood vessels of the body which carry oxygen rich blood away from the heart are known as what? A) Veins. B) Arteries. C) Capillaries. D) Arterioles. Show Answer Correct Answer: B) Arteries. ← 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