This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System โ Quiz 22 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. This organelle makes useable energy for the cell A) Nucleolus. B) Mitochondria. C) Chloroplast. D) Ribosome. Show Answer Correct Answer: B) Mitochondria. 2. What does a QRS wave represent? A) Atria contract. B) Ventricles contract. C) Ventricles relax and reset. D) None of above. Show Answer Correct Answer: B) Ventricles contract. 3. What kind of blood enters the left side of the heart? A) Deoxygenated. B) Oxygenated. Show Answer Correct Answer: B) Oxygenated. 4. What Von Belmont concluded his experiments? What did Van Helment conclude through his experiments? A) Plants gain their weight by absorption of water. Plants increase their weight by absorbing water. B) Plants get their weight from soil Plants absorb E from soil and increase their weight with it. C) Plants won't get their weight Plants won't gain their weight. D) All the above. Show Answer Correct Answer: A) Plants gain their weight by absorption of water. Plants increase their weight by absorbing water. 5. The heart's protective membrane filled with fluid to reduce friction is called..... A) Pericardium. B) Semilunar. C) Triskuspidalis. D) Cardinal. Show Answer Correct Answer: A) Pericardium. 6. Where does the oxygen-rich blood from the lungs go after it returns to the heart? A) It is pumped out into the body through the aorta. B) It is pumped back to the lungs. C) It stays in the heart. D) It is pumped to the right side of the heart. Show Answer Correct Answer: A) It is pumped out into the body through the aorta. 7. How can we keep our heart healthy? A) Be stress-free. B) Stay away from unhealthy fats. C) Get good sleep. D) All are good options to keep heart healthy. Show Answer Correct Answer: D) All are good options to keep heart healthy. 8. Why does someone feel fine then fall dead from a heart attack? A) Because they are old. B) Because their arteries are narrow. C) Because their arteries are narrow and blood clots lodge in them. D) Because their dont eat right. Show Answer Correct Answer: C) Because their arteries are narrow and blood clots lodge in them. 9. Which organ of the circulatory system is the place where arteries and veins meet? A) Heart. B) Veins. C) Capillaries. D) Arteries. Show Answer Correct Answer: C) Capillaries. 10. What does an electrocardiogram show? A) Blood pressure. B) Pulse rate. C) Electrical activity of the heart. D) Lymphatic drainage. Show Answer Correct Answer: C) Electrical activity of the heart. 11. Which of the following makes up 55% of the blood? A) Blood Platelets. B) Erythrocytes. C) Blood Plasma. D) None of above. Show Answer Correct Answer: C) Blood Plasma. 12. Which is the correct sequence of blood flow through the heart and lungs? A) Right atrium, right ventricle, lungs, left atrium left ventricle. B) Right atrium, right ventricle, left atrium, left ventricle, lungs. C) Left ventricle, left atrium, lungs, right ventricle, right atrium. D) Lungs, right atrium, right ventricle, left atrium, left ventricle. Show Answer Correct Answer: A) Right atrium, right ventricle, lungs, left atrium left ventricle. 13. The large artery that brings blood from the heart to the lungs is called the A) Vein. B) Ventricle. C) Pulmonary artery. D) Capillary. Show Answer Correct Answer: C) Pulmonary artery. 14. Large amounts of stomata on the lower surface of leaves rather than upper surface will result in ..... A) High rate of transpiration at night. B) High rate of transpiration. C) Low rate of transpiration. D) Irregular rate of transpiration. Show Answer Correct Answer: C) Low rate of transpiration. 15. What is chemical digestion A) Acid and enzymes breaking down food. B) Physically breaking food into smaller pieces increasing the surface area of the food. C) The chewing motion of breaking down food. D) Chemical reaction using enzymes to break down polymer into monomers. Show Answer Correct Answer: D) Chemical reaction using enzymes to break down polymer into monomers. 16. Fights infections and diseases A) White blood cell. B) Red blood cell. C) Plasma. D) Platelets. Show Answer Correct Answer: A) White blood cell. 17. Which of these is not a layer of the heart? A) Epicardium. B) Endocardium. C) Pericardium. D) Myocardium. Show Answer Correct Answer: C) Pericardium. 18. Common illnesses that affect the circulatory system include arteriosclerosis, demage in the heart or blood vessels, HYPERTENSION, anaemia and LEUKAEMIA. A) True. B) False. Show Answer Correct Answer: A) True. 19. What blood vessels carry blood back to the heart? A) Arteries. B) Xylem. C) Veins. D) Neurons. Show Answer Correct Answer: C) Veins. 20. Which type of vessel has the largest lumen? A) Artery. B) Arteriole. C) Vein. D) Capillary. Show Answer Correct Answer: C) Vein. 21. Carbon dioxide rich blood enters the heart through what chamber? A) Left Atrium. B) Right Atrium. C) Left Ventricle. D) Right Ventricle. Show Answer Correct Answer: B) Right Atrium. 22. Cardiac output increases during exercise. A) False. B) True. Show Answer Correct Answer: B) True. 23. What are the four different blood types? A) A, AB, TK, Q. B) A, B, C, D. C) A, B, AB, O. D) A, AM, O, P. Show Answer Correct Answer: C) A, B, AB, O. 24. Which of the following is commonly used when taking blood pressure? A) Radial artery. B) Carotid artery. C) Brachial artery. D) None of these. Show Answer Correct Answer: C) Brachial artery. 25. Which of these following is the function of white blood cell? A) Transport hormone. B) Transport oxygen. C) Producing antibody. D) Blood clotting. Show Answer Correct Answer: C) Producing antibody. 26. EXHALE!!! My lungs are ..... air. A) Taking in. B) Letting out. Show Answer Correct Answer: B) Letting out. 27. Which is not a component of blood? A) White Blood Cells. B) Red Blood Cells. C) Plasma. D) Plates. Show Answer Correct Answer: D) Plates. 28. Which blood vessel of the pulmonary artery will carry deoxygenated blood A) Vena cava. B) Pulmonary artery. C) Aorta. D) Pulmonary vein. Show Answer Correct Answer: B) Pulmonary artery. 29. Red blood cells carry oxygen. A) True. B) False. Show Answer Correct Answer: A) True. 30. What happens when the pericardial membrane is not present surrounding the heart? What happens if there are no pericardial membranes around the heart? A) No protection from harmful microbes. B) No protection from poisonous substance s. C) No protection from external shocks. D) All the above เฐชเฑเฐตเฐจเฑเฐจเฑ. Show Answer Correct Answer: C) No protection from external shocks. 31. Where in the respiratory system does gas exchange occur? A) In the pharynx. B) In the alveoli. C) In the heart. D) In the trachea. Show Answer Correct Answer: B) In the alveoli. 32. What separates the left ventricle and left atrium? A) Bicuspid valve. B) Coronary artery. C) Tricuspid valve. D) Septum. Show Answer Correct Answer: A) Bicuspid valve. 33. What part of blood is responsible for clotting blood? A) Red Blood Cells. B) Platelets. C) Plasma. D) White Blood Cells. Show Answer Correct Answer: B) Platelets. 34. Medical term for a heart attack A) Myocardium Fraction. B) Myometrial Infarction. C) Myocardial Infarction. D) Pulmonary Embolism. Show Answer Correct Answer: C) Myocardial Infarction. 35. Introduction of a fluid other than blood to the body such as saline or glucose solution A) Antigens. B) Infusion. C) Rh grouping system. D) Rh grouping system. E) Agglutination. Show Answer Correct Answer: B) Infusion. 36. They prevent the blood from flowing back into the atria when the ventricles contract. A) Valves. B) Septum. C) Pleura. D) Plasma. Show Answer Correct Answer: A) Valves. 37. The circulatory system works with the other systems in your body. A) True. B) False. Show Answer Correct Answer: A) True. 38. A graphic record of the heart's electrical activity during the cardiac cycle is a/n A) ECG. B) EEG. C) EGC. D) EGG. Show Answer Correct Answer: A) ECG. 39. What is the smallest unit of an organism or living thing? A) Tissue. B) Cell. C) Organ. D) Organ System. Show Answer Correct Answer: B) Cell. 40. What is an upper, thin-walled chamber through which blood is pumped to the ventricles? A) Veins. B) Valves. C) Atrium. D) Ventricles. Show Answer Correct Answer: C) Atrium. 41. This particular blood vessel carries de-oxygenated blood away from the heart to the lungs: A) Superior vena cava. B) Pulmonary artery. C) Pulmonary vein. D) Inferior vena cava. Show Answer Correct Answer: B) Pulmonary artery. 42. Which artery transfer deoxygenated blood A) Vena cava. B) Pulmonary vein. C) Aorta. D) Pulmonary artery. Show Answer Correct Answer: D) Pulmonary artery. 43. What is the role of the valves in the heart? A) Carry nutrients. B) Produce hormones. C) Control blood flow direction. D) Pump blood. Show Answer Correct Answer: C) Control blood flow direction. 44. The type of blood vessels that have one-way valves preventing the backflow of blood. A) Capillaries. B) Arteries. C) Arterioles. D) Veins. Show Answer Correct Answer: D) Veins. 45. Which blood vessel take blood to the heart. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 46. When a neuron is not engaged in an impulse. A) Resting potential. B) Neural potential. C) Synaptic potential. D) Action potential. Show Answer Correct Answer: A) Resting potential. 47. These blood vessels have the thickest wall and carry blood moving at high pressure. A) Veins. B) Arteries. C) Capillaries. D) None of the above. Show Answer Correct Answer: B) Arteries. 48. Which of the following blood vessels contain deoxygenated blood? A) Aorta. B) Arteries. C) Capillaries. D) Veins. Show Answer Correct Answer: D) Veins. 49. Platelets are also called A) Erythrocytes. B) Thrombocytes. C) Leukocytes. D) None of the above. Show Answer Correct Answer: B) Thrombocytes. 50. An animal's color or pattern that helps it blend into its surroundings A) Environment. B) Habitat. C) Camouflage. D) Mimicry. Show Answer Correct Answer: C) Camouflage. 51. The heart is an organ that pumps ..... to the lungs and the whole body. A) Blood. B) Oxygen. C) Nutrients. D) Carbon dioxide. Show Answer Correct Answer: A) Blood. 52. Located on the surface of the red blood cells which determine blood type A) Transfusion. B) Agglutination. C) Rh grouping system. D) Agglutination. E) Antigens. Show Answer Correct Answer: E) Antigens. 53. You will have lower pulse rate when you are jogging but higher pulse rate when you are running. A) True. B) False. C) Both jogging and running will give same pulse rate. D) None of above. Show Answer Correct Answer: A) True. 54. Cohesion is ..... A) Molecules sticking together with other molecules. B) Molecules sticking together. Show Answer Correct Answer: B) Molecules sticking together. 55. A stroke is best defined as ..... A) The thickening of the walls of the arteries in the body. B) A blockage preventing or interrupting the flow of blood to the brain. C) A leak in the septum between the chambers of the heart. D) The irregular contraction of the heart muscle. Show Answer Correct Answer: B) A blockage preventing or interrupting the flow of blood to the brain. 56. Blood found in the pulmonary vein would be A) Blue (oxygenated). B) Blue (deoxygenated). C) Red (deoxygenated). D) Red (oxygenated). Show Answer Correct Answer: D) Red (oxygenated). 57. What connects bones and muscles together? A) Ligaments. B) Glue. C) Cartilage. D) Tendons. Show Answer Correct Answer: D) Tendons. 58. The blood type which is known as the universal donor. A) O-. B) AB-. C) AB+. D) O+. Show Answer Correct Answer: A) O-. 59. Which option best describes the main function of the pulmonary circulatory system? A) To supply the organs of the body with oxygenated blood. B) To remove solid waste from the blood. C) To collect oxygen and remove carbon dioxide from the blood. D) To feed the heart itself with oxygenated blood. Show Answer Correct Answer: C) To collect oxygen and remove carbon dioxide from the blood. 60. The blood vessels that carry blood back to the heart are called A) Veins. B) Arteries. Show Answer Correct Answer: A) Veins. โ PreviousNext โRelated 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 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books