This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 289 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 289 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The heart wall is composed of three layers. The structure of the heart wall that is in direct contact with blood is called..... A) Epikardium. B) Myocardium. C) Endocardium. D) Pericardium. Show Answer Correct Answer: C) Endocardium. 2. Fibrinogen and prothrombin are blood proteins necessary for the clotting of blood. A) True. B) False. Show Answer Correct Answer: A) True. 3. What is the body's transportation system? A) Heart. B) Circulatory system. C) Nervous system. D) Veins. Show Answer Correct Answer: B) Circulatory system. 4. What do lymph nodes house? A) Yellow Blood Cells. B) Red Blood Cells. C) Blue Blood Cells. D) White Blood Cells. Show Answer Correct Answer: D) White Blood Cells. 5. The function of WBC is: A) To distribute heat. B) To protect enzymes. C) To cause blood clotting. D) To destroy bacteria. Show Answer Correct Answer: D) To destroy bacteria. 6. Each day, the body makes new Red Blood Cells to replace those that die or are lost from the body. Red Blood Cells are made in the bone marrow. A) True. B) False. Show Answer Correct Answer: A) True. 7. Veins have ..... along their length to prevent the back low of blood. A) Valves. B) Taps. C) Trachea. D) Blocks. Show Answer Correct Answer: A) Valves. 8. Which body system contains the heart? A) Circulatory system. B) Respiratory system. C) Digestive system. D) None of above. Show Answer Correct Answer: A) Circulatory system. 9. What body parts are included in the Circulatory System? A) Heart, blood vessels, blood and body organs and tissues. B) Brain, eyes, ears and nose. C) Lungs, mouth, brain and blood vessels. D) None of above. Show Answer Correct Answer: A) Heart, blood vessels, blood and body organs and tissues. 10. ..... begin large and wide at the heart then become smaller till end in blood capillaries near the cells. A) Arteries. B) Capillaries. C) Veins. D) No correct answer. Show Answer Correct Answer: A) Arteries. 11. Which blood group is universal recipient? A) AB. B) A. C) B. D) O. Show Answer Correct Answer: A) AB. 12. Tiny blood vessels with very thin walls through oxygen, wastes, and nutrients pass are called A) Capillaries. B) Veins. C) Arteries. D) Heart cells. Show Answer Correct Answer: A) Capillaries. 13. To go on living, the body's cells need food, water, chemicals and ..... A) Helium. B) Oxygen. C) Nitrogen. D) Carbon Dioxide. Show Answer Correct Answer: B) Oxygen. 14. When I relax, my heart rate ..... A) Slows down. B) Speeds up. Show Answer Correct Answer: A) Slows down. 15. What do RED BLOOD CELLS carry? A) Oxygen. B) Nutrients. C) Plasma. D) Platelets. Show Answer Correct Answer: A) Oxygen. 16. Which is known as the universal recipient? A) Type O. B) Type A. C) Type B. D) Type AB. Show Answer Correct Answer: D) Type AB. 17. The yellowish fluid that is in the blood that contains nutrients is called A) Plasma. B) Platelets. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: A) Plasma. 18. What is the first chamber of the heart that blood enters after returning from the body's circulation? A) Left Atrium. B) Right Atrium. C) Left Ventricle. D) Right Ventricle. Show Answer Correct Answer: B) Right Atrium. 19. The function of the atria is to A) Pump blood to the lungs. B) Pump blood to the body. C) Receive blood that comes into the heart. D) Deliver oxygen to body tissues. Show Answer Correct Answer: C) Receive blood that comes into the heart. 20. The correct process of large blood circulation is..... A) Right atrium-right ventricle-aorta-whole body-vena cava-left atrium. B) Left atrium-left ventricle-pulmonary artery-whole body-vena cava-right atrium. C) Left ventricle-aorta-whole body-vena cava-right atrium. D) Right ventricle-aorta-whole body-vena cava-left atrium. Show Answer Correct Answer: C) Left ventricle-aorta-whole body-vena cava-right atrium. ← 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