This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 169 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 169 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. During an average lifetime, a human heart will beat about more than 2.5 billion times. About how many times does it beat in a day? A) 1 million times. B) 500, 000 times. C) 50, 000 times. D) 100, 000 times. Show Answer Correct Answer: D) 100, 000 times. 2. This type of blood helps your blood to clot, so you don't bleed out when you cut yourself A) Red blood cells. B) White blood cells. C) Platelets. D) None of above. Show Answer Correct Answer: C) Platelets. 3. What type of air to we breath "out" A) Carbon dioxide. B) Oxygen. C) Nitrogen. D) None of above. Show Answer Correct Answer: A) Carbon dioxide. 4. Little blood circulation A) Heart (left ventricle) $\rightarrow$ all body tissues $\rightarrow$ heart (right atrium). B) Heart (right ventricle) $\rightarrow$ lungs $\rightarrow$ heart (left atrium). Show Answer Correct Answer: B) Heart (right ventricle) $\rightarrow$ lungs $\rightarrow$ heart (left atrium). 5. What is an erythrocyte? A) T-cell. B) Red blood cell. C) Plasma cell. D) White blood cell. Show Answer Correct Answer: B) Red blood cell. 6. What can result from an atrial septal defect? A) All of the above. B) Heart failure. C) Stroke. D) Abnormal heartbeat. Show Answer Correct Answer: A) All of the above. 7. Which part of the blood is the solid part? A) Cells. B) Plasma. C) Nutrients. D) Wastes. Show Answer Correct Answer: A) Cells. 8. What cells line the interior surface of vessels? A) Leydig. B) Goblet. C) Endothelium. D) Epithelium. Show Answer Correct Answer: C) Endothelium. 9. Cells that are responsible for Immune Defense. (Phagocytosis) A) Neutrophils. B) Eosinophils. C) Basophils. D) Lymphocytes. Show Answer Correct Answer: A) Neutrophils. 10. What is the largest artery in your body called? A) The lung. B) The Superior Vena Cava. C) The Aorta. D) None of above. Show Answer Correct Answer: C) The Aorta. 11. A ..... is a one-way "door" that normally allows blood to flow in only one direction through the heart. A) Pulse. B) Valve. C) Blood. D) None of above. Show Answer Correct Answer: B) Valve. 12. Transport system of the body responsible for carrying oxygen and nutrients to the body and carrying away carbond ioxide and other wastes, composed of the heart, blood vessels, and blood A) Cardiovascular system. B) Lymphatic system. C) Pulmonary circulation. D) System circulation. Show Answer Correct Answer: A) Cardiovascular system. 13. The group of organs, consisting of the heart and blood vessels, that circulates blood through the body. A) Respiratory System. B) Circulatory System. C) Lymphatic System. D) Digestive System. Show Answer Correct Answer: B) Circulatory System. 14. Which of the following is true about veins and arteries? A) Arteries carry oxygen away from the heart, veins carry carbon dioxide to the heart. B) Arteries carry carbon dioxide away from the heart, veins carry oxygen to the heart. C) Arteries carry oxygen to the heart, and veins carry carbon dioxide away from the heart. D) Arteries carry carbon dioxide to the heart, and veins carry oxygen away from the heart. Show Answer Correct Answer: A) Arteries carry oxygen away from the heart, veins carry carbon dioxide to the heart. 15. This system transports oxygen and nutrients around the body. A) Circulatory. B) Respiratory. C) Skeletal. D) Digestive. Show Answer Correct Answer: A) Circulatory. 16. Protects against infection and disease is a function of the A) Blood. B) Circulatory system. C) Blood & circulatory system. D) None of above. Show Answer Correct Answer: C) Blood & circulatory system. 17. What is the valve located between the right atrium and the right ventricle called? A) Aortic Valve. B) Mitral Valve. C) Pulmonary Valve. D) Tricuspid Valve. Show Answer Correct Answer: D) Tricuspid Valve. 18. The systemic system involves blood flow to A) The Liver. B) The Kidneys. C) All tissues except the heart and lungs. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. The smallest blood vessel A) Capillary. B) Vein. C) Artery. D) Submarine. Show Answer Correct Answer: A) Capillary. 20. Move on own power A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: B) White blood cells. ← 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