This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 53 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 53 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How does the circulatory system and the respiratory system work together? A) The circulatory system carries oxygen to and from the lungs. B) The circulatory system moves the body from place to place. C) The respiratory system pumps blood throughout the body. D) The respiratory system helps in the digestion process. Show Answer Correct Answer: A) The circulatory system carries oxygen to and from the lungs. 2. A group of organs that move materials to body cells and waste is called A) Circulatory System. B) Platelets. C) Pulmonary Circulation. D) Artery. Show Answer Correct Answer: A) Circulatory System. 3. What are platelets? A) Damaged blood vessels. B) Red & white blood cells. C) Prevent backflow of blood. D) Tiny pieces of blood cells inside membranes. Show Answer Correct Answer: D) Tiny pieces of blood cells inside membranes. 4. Through which highway does the blood flow from the heart? A) Aorta. B) Capillaries. C) Veins. D) Arteries. Show Answer Correct Answer: A) Aorta. 5. Sudden death of brain cells due to a problem with the blood supply caused by a blockage or the rupture of an artery A) Stroke. B) Aneurysm. C) Atherosclerosis. D) Coronary artery disease. Show Answer Correct Answer: A) Stroke. 6. Which of the following measures is harmful to the cardiovascular system? A) Do not use harmful stimulants such as alcohol and tobacco. B) Vaccinate against diseases harmful to the heart such as influenza, typhoid, and diphtheria. C) Eat a lot of fat and animal organs. D) Exercise regularly and moderately. Show Answer Correct Answer: C) Eat a lot of fat and animal organs. 7. What is hypertension also known as? A) Low blood pressure. B) High blood pressure. C) Blood. D) Hyperextension. Show Answer Correct Answer: B) High blood pressure. 8. About how many lymph nodes do we have in our body? A) 5-10. B) 50-100. C) 500-1, 000. D) 5, 000-10, 000. Show Answer Correct Answer: C) 500-1, 000. 9. Tiny blood vessels that connect arteries to veins A) Tendons. B) Septum. C) Capillaries. D) Ventricles. Show Answer Correct Answer: C) Capillaries. 10. Small cells that engulf and destroy microbes and cellular debris in the CNS A) Microglia. B) Horns. C) Neuroglia. D) Astrocytes. Show Answer Correct Answer: A) Microglia. 11. White blood cells A) Carry oxygen and other gases. B) Fight infection. C) Stop bleeding. D) None of above. Show Answer Correct Answer: B) Fight infection. 12. The heartbeat is the heart contracting or squeezing. A) True. B) False. Show Answer Correct Answer: A) True. 13. The only artery that carries carbondioxide rich blood ..... A) Aorta. B) Auricle. C) Pulmonary artery. D) Pullmonary vein. Show Answer Correct Answer: C) Pulmonary artery. 14. The pigment present in the blood that gives it red colour A) Chlorophyll. B) Bone marrow. C) Muscles. D) Haemoglobin. Show Answer Correct Answer: D) Haemoglobin. 15. Pumping organ of the circulatory system A) Heart. B) Aorta. C) Septum. D) None of above. Show Answer Correct Answer: A) Heart. 16. What did some scientists, like Jacobus Sylvius, tell Vesalius when he discovered issues with Galen's teachings? A) All of Galen's work was a lie. B) The human body has changed since Galen described it. C) Galen changed his writings so he wouldn't get in trouble with the church. D) Galen studied women and they studied men, which was why there were differences. Show Answer Correct Answer: B) The human body has changed since Galen described it. 17. What is the function of sinks? A) Storing molecules transported by the phloem. B) Regulating the volume transported by the phloem. C) Extracting molecules from the phloem for glycogen production. D) Moral support for the phloem. Show Answer Correct Answer: A) Storing molecules transported by the phloem. 18. These are small, spherical enucleated and biconcave cells that carry oxygen. A) Erythrocytes. B) Leucocytes. C) Thrombocytes. D) Plasma. Show Answer Correct Answer: A) Erythrocytes. 19. Superior vena cave brings blood from organs of the body that lie below the heart A) True. B) False. Show Answer Correct Answer: B) False. 20. Oxygenated blood pathway arrange steps from 1-7:left ventricle A) 3. B) 7. C) 5. D) 4. E) 6. Show Answer Correct Answer: C) 5. ← 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