This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 371 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 371 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The heart is made up of ..... tissue. A) Brain. B) Skin. C) Muscle. D) Bone. Show Answer Correct Answer: C) Muscle. 2. Artery that supplies blood to all body parts A) Inferior vena cava. B) Aorta is the arterial arch. C) Superior vena cava Urdva Brihatsira. D) All the above. Show Answer Correct Answer: B) Aorta is the arterial arch. 3. Size of the heart is equal to one's own ..... A) Toes. B) Fist. C) Stomach. D) Eyes. Show Answer Correct Answer: B) Fist. 4. Gates in the heart that open and close to let blood through are called A) Valves. B) Ventricles. C) Atrium. D) Aorta. Show Answer Correct Answer: A) Valves. 5. . Where does an electrical impulse go after it leaves the Bundle of His? A) Aorta. B) AV node. C) Purkinje fibers. D) Because of the difference. Show Answer Correct Answer: C) Purkinje fibers. 6. Which of these is NOT a blood type? A) A. B) B. C) C. D) AB. E) O. Show Answer Correct Answer: C) C. 7. Which system works closely with the respiratory system to pick up oxygen and remove carbon dioxide? A) Skeletal system. B) Muscular system. C) Circulatory system. D) Nervous system. Show Answer Correct Answer: C) Circulatory system. 8. The circulatory system gets oxygen from the ..... to make oxygenated blood. A) Heart. B) Lungs. C) Stomach. D) Kidneys. Show Answer Correct Answer: B) Lungs. 9. Tubes that carry blood from the heart to the other parts of the body A) Arteries. B) Heartbeat. C) Clot. D) Veins. Show Answer Correct Answer: A) Arteries. 10. The building blocks of carbohydrates are amylase. A) True. B) False. Show Answer Correct Answer: B) False. 11. Whole blood consists of blood cells (about 45%) and a liquid portion called ..... (55%) A) Plasma. B) Water. C) Blood. D) Enzymes. Show Answer Correct Answer: A) Plasma. 12. The ..... carries blood from the heart to the circulatory system. A) Vein. B) Pulmonary artery. C) Pulmonary vein. D) Aorta. Show Answer Correct Answer: D) Aorta. 13. What is responsible in transporting the substances? A) Vascular System. B) Vascular Tissues. C) Xylem. D) Phloem. Show Answer Correct Answer: A) Vascular System. 14. Blood traveling from the heart to the rest of the body is called our ..... circulation. A) Full body. B) Systemic. C) Pulmonary. D) Heart to lung. Show Answer Correct Answer: B) Systemic. 15. The chamber in the heart with the highest pressure is: A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 16. Blood moving back up to the heart is pushed by muscles contracting and pressing against the veins A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 17. Veins have valves. What is the function of this structure? A) Regulate blood flow. B) Maintain high pressure. C) Prevent back-flow of blood. D) Stretch and Recoil. Show Answer Correct Answer: C) Prevent back-flow of blood. 18. In an efficient circulatory system, the blood picks up and delivers it to the muscles. A) Oxygen quickly. B) Carbon dioxide slowly. Show Answer Correct Answer: A) Oxygen quickly. 19. What are red blood cells responsible for? A) Fighting diseases and infections. B) Carrying oxygen to the body. C) Clot/Join together to stop bleeding. D) Carrying signals to the brain. Show Answer Correct Answer: B) Carrying oxygen to the body. 20. Vessles that carry only oxygenated blood (except for pulmonary circulation) A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: A) 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