This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 138 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 138 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Match each section of the respiratory system to its characteristics or definition Bronchi A) Flap of skin to cover when you swallow. B) Air moves down the Trachea. C) This is where the trachea dives into 2). D) Are filled with small alveoli and oxygen and carbon dioxide swap places. This area is like a sponge. Show Answer Correct Answer: C) This is where the trachea dives into 2). 2. What is label "2" ? A) Right ventricle. B) Left atrium. C) Aorta. D) Left ventricle. E) Inferior vena cava. Show Answer Correct Answer: A) Right ventricle. 3. The job of the heart is to pump blood to the body. A) True. B) False. Show Answer Correct Answer: A) True. 4. ..... are the smallest blood vessels and where all exchanges between blood and cells occurs. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 5. How is the heart depicted in the picture in terms of sides? A) Left side is shown on the right. B) Right side is shown on the right. C) Both sides are shown accurately. D) Left side is shown on the left. Show Answer Correct Answer: C) Both sides are shown accurately. 6. The circulatory system has important functions. What is one of its jobs? A) Gets nutrients out of the food you eat. B) Carries blood all over your body. C) Lets your body move. D) Carries messages through your spinal cord to your brain. Show Answer Correct Answer: B) Carries blood all over your body. 7. Whose job is it to fight bacteria, viruses and other harmful substances the body sees as a threat? A) Platelets. B) Red blood cells. C) Hemoglobin. D) White blood cells. Show Answer Correct Answer: D) White blood cells. 8. Where in the lungs are carbon dioxide and oxygen exchanged? A) Alveoli. B) Bronchi. C) Bronchioles. D) None of above. Show Answer Correct Answer: A) Alveoli. 9. Our blood only contains red cells A) False. B) True. Show Answer Correct Answer: A) False. 10. What am I? I am the middle layer of an artery or vein A) Outer tunic. B) Tunica media. C) Intimate tunic. D) None of above. Show Answer Correct Answer: B) Tunica media. 11. These are tiny blood vessels in your body that exchange oxygen and carbon dioxide. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 12. ..... returns blood from the upper body. A) Aorta. B) Inferior vena cava. C) Vena cava. D) Superior vena cava. Show Answer Correct Answer: D) Superior vena cava. 13. Type of blood circulatory system in amphibians is: A) Incomplete double circulatory system. B) Complete double circulatory system. C) Single blood circulatory system. D) None of above. Show Answer Correct Answer: A) Incomplete double circulatory system. 14. The ..... is the thick muscular wall that seperates the two sides of the heart. A) Atria. B) Septum. C) Valve. D) Ventricles. Show Answer Correct Answer: B) Septum. 15. What is the role of hemoglobin in the blood? A) It carries carbon dioxide from the body to the lungs. B) It fights against infections. C) It helps in clotting of blood. D) It carries oxygen from the lungs to the rest of the body. Show Answer Correct Answer: D) It carries oxygen from the lungs to the rest of the body. 16. Which element in the blood is round and colourless? Red blood cells A) Platelets. B) White blood cells. C) Red blood cells. D) Plasma. Show Answer Correct Answer: A) Platelets. 17. Which of the following organelles is responsible for cellular respiration? A) Endoplasmic Reticulum. B) Nucleus. C) Ribosome. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 18. Anemia is a disorder where there are too few ..... in the blood. A) Lymphocytes. B) Red blood cells. C) White blood cells. D) Platelets. Show Answer Correct Answer: B) Red blood cells. 19. How does blood get oxygen? A) Through absorption in the stomach. B) By filtering through the kidneys. C) When it is pumped through the liver. D) When it is pumped from the heart to the lungs and mixes with inhaled air. Show Answer Correct Answer: D) When it is pumped from the heart to the lungs and mixes with inhaled air. 20. Is a blood vessel that carries blood away from the heart. A) Cardiovascular system. B) Blood. C) Artery. D) None of above. Show Answer Correct Answer: C) Artery. 21. Which part of the blood is correctly paired with its job? A) Red blood cells-transport wastes and hormones. B) Plasma-carries oxygen. C) Platelets-produce antibodies. D) White blood cells-fight infection. Show Answer Correct Answer: D) White blood cells-fight infection. 22. ..... takes place when blood travels from the heart, through the lungs, and back to the heart. A) Pulmonary circulation. B) Systemic circulation. Show Answer Correct Answer: A) Pulmonary circulation. 23. What is Red Blood Cells main job? A) Clot the Blood. B) Fight Infectious Disease. C) Transport Oxygen. D) None of above. Show Answer Correct Answer: C) Transport Oxygen. 24. Large blood vessels that carry blood away from the heart. A) Venules. B) Veins. C) Arteries. D) Arterioles. Show Answer Correct Answer: C) Arteries. 25. What do you call the tubes that serve as a passageway for blood to reach the different parts of the body? A) Blood vessels. B) Veins. C) Blood. D) Ventricles. Show Answer Correct Answer: A) Blood vessels. 26. A blood cell that fights infection by destroying microscopic, diseasecausing organisms A) White blood cell. B) Platelet. C) Capillary. D) Red blood cell. Show Answer Correct Answer: A) White blood cell. 27. This node of the heart is known as the natural "pacemaker" ? A) AV Node. B) Nodes of Ranvier. C) Because of the difference. D) Lymph Nodes. Show Answer Correct Answer: C) Because of the difference. 28. The largest vein in the human body is: A) Pulmonary vein. B) Intrajugular vein. C) Vena cava. D) Aorta. Show Answer Correct Answer: C) Vena cava. 29. Why do we need oxygen? A) For respiration. B) To eat. C) To breathe. D) For photosynthesis. Show Answer Correct Answer: A) For respiration. 30. Blood vessels that carry oxygen poor blood to the heart are A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Veins. 31. Which is a type of cancer that occurs when large amounts of abnormal white blood cells are produced that interfere with the production of other blood cells? A) Leukemia. B) Heart Attack. C) Hypertension. D) Anemia. Show Answer Correct Answer: A) Leukemia. 32. Which chamber of the heart pumps deoxygenated blood into the pulmonary circulation? A) Left atrium. B) Right ventricle. C) Left ventricle. D) Right atrium. Show Answer Correct Answer: B) Right ventricle. 33. Is it true or false?When we exercise, we not only train our body but also our heart. A) False. B) True. Show Answer Correct Answer: B) True. 34. Which part of the circulatory system is responsible for carrying oxygen to the body's cells? A) Arteries. B) Lymph Vessels. C) Veins. D) Capillaries. Show Answer Correct Answer: C) Veins. 35. The blood's job is to A) Pump nutrients to all parts of the body. B) Move the things your body needs. C) Make plasma. D) Break down food. Show Answer Correct Answer: B) Move the things your body needs. 36. Owners of successful race horses hope that the horses' offspring will be like their parents. How does a young race horse inherit its characteristics? A) A equally from its mother and father. B) B mainly from its father. C) C mainly from its mother. D) D passed across the placenta. Show Answer Correct Answer: A) A equally from its mother and father. 37. Platelets are small cell..... A) Erthyoctes. B) Nuclei. C) Units. D) Fragments. Show Answer Correct Answer: D) Fragments. 38. Also known as erythrocytes A) Plasma. B) Platelets. C) Red blood cell. D) White blood cell. Show Answer Correct Answer: C) Red blood cell. 39. At the arteriole end of the capillary, how does the hydrostatic pressure of the blood compare to the hydrostatic pressure of the tissue fluid: A) It is higher. B) It is lower. C) It is the same. D) None of above. Show Answer Correct Answer: A) It is higher. 40. What are the blood cells? A) Erythrocytes, leukocytes, and platelets. B) The buffy coat and plasma proteins. C) Blood cells, cell fragments, and plasma. D) All compounds synthesized by the blood. Show Answer Correct Answer: A) Erythrocytes, leukocytes, and platelets. 41. Blood enters the right atrium through which vessels A) Superior and Inferior Vena Cava. B) Pulmonary Artery. C) Pulmonary Vein. D) Tricuspid Valve. Show Answer Correct Answer: A) Superior and Inferior Vena Cava. 42. Pathway of blood through the heart? A) Straight down the left side. B) Through the right side then left side. C) Through the left side then right side. D) Straight down the right side. Show Answer Correct Answer: B) Through the right side then left side. 43. What vessel carries blood back to the heart from the lower part of the body? A) Aorta. B) Inferior vena cava. C) Superior vena cava. D) Pulmonary artery. Show Answer Correct Answer: B) Inferior vena cava. 44. Your heart is a ....., so it needs exercise to keep it strong. A) Blood pressure. B) Arteriosclerosis. C) Muscle. D) Arteries. Show Answer Correct Answer: C) Muscle. 45. Part of blood that helps blood to clot where there is aninjury A) Plasma. B) White blood cells. C) Red blood cells. D) Platelets. Show Answer Correct Answer: D) Platelets. 46. The aorta transports deoxygenated blood. A) False. B) True. Show Answer Correct Answer: A) False. 47. The rate of your heartbeats ..... during running. A) Decreases. B) Increases. Show Answer Correct Answer: B) Increases. 48. Which blood vessel carries bright red blood? A) Veins. B) Arteries. C) Both. D) Neither. Show Answer Correct Answer: B) Arteries. 49. This structure is known as the base of the heart A) Apex. B) Atrium. C) Ventricle. D) Mitral valve. Show Answer Correct Answer: A) Apex. 50. The main organ of respiratory system is A) Lungs. B) Mouth. C) Nose. D) Heart. Show Answer Correct Answer: A) Lungs. 51. Which of the following statements about blood vessels is FALSE? A) Veins have thicker, elastic muscular walls than arteries in order to withstand the pressure of blood as it moves through the body. B) Veins usually have valves to prevent the back flow of blood in the body. C) The largest artery in the body is the aorta. D) None of above. Show Answer Correct Answer: A) Veins have thicker, elastic muscular walls than arteries in order to withstand the pressure of blood as it moves through the body. 52. What are white 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: A) Fighting diseases and infections. 53. Which of the blood cells plays a roll in fighting infections? A) White Blood Cells. B) Red Blood Cells. C) Plasma. D) Platelet. Show Answer Correct Answer: A) White Blood Cells. 54. The following characteristics of blood vessels are not true..... A) Has one valve near the heart. B) It is located near the surface of the body and looks greenish in color. C) If you are injured, the blood will gushed out. D) The direction of blood flow leaves the heart. Show Answer Correct Answer: B) It is located near the surface of the body and looks greenish in color. 55. What direction do the arteries carry the blood? A) Away from the lungs. B) Away from the heart. C) Towards the heart. D) Towards the lungs. Show Answer Correct Answer: B) Away from the heart. 56. Right atrium2. left atrium3. right ventricle4. left ventricle5. aortic semilunar valve6. aorta7. Tricuspid8. pulmonary artery9. pulmonary veins10. BicuspidWhat is the correct order for the flow of blood returning to the heart from the pulmonary circulation? A) 2, 7, 4, 8, 9, 1, 10, 3, 5, 6. B) 9, 1, 10, 3, 5, 6, 2, 7, 4, 8. C) 9, 2, 10, 4, 5, 6, 1, 7, 3, 8. D) 1, 7, 3, 8, 9, 2, 10, 4, 5, 6. Show Answer Correct Answer: C) 9, 2, 10, 4, 5, 6, 1, 7, 3, 8. 57. The right hand side of the heart is separatd from the left side with a muscular wall called the ..... A) Ventricles. B) Cardinal. C) Septum. D) Atria. Show Answer Correct Answer: C) Septum. 58. Vasoconstriction A) The wound is "corked" , or covered with sticky platelets. B) Blood vessels constrict (or "shrink" ) to slow blood flow at the site of injury. C) Formation of a Fibrin Blood Clot. D) None of above. Show Answer Correct Answer: B) Blood vessels constrict (or "shrink" ) to slow blood flow at the site of injury. 59. What type of circulatory system do insects have? A) Closed circulatory system. B) Digestive circulatory system. C) Respiratory circulatory system. D) Open circulatory system. Show Answer Correct Answer: D) Open circulatory system. 60. True or False:When you sleep, your body STOP working. (pumping blood, breathing oxygen, etc.) A) False. B) True. Show Answer Correct Answer: A) False. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books