This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System โ Quiz 144 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 144 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following statement is not related to closed type of circualtion. A) Arteries carry blood to body organs Arteries carry blood to body organs. B) Blood flows in vessels. C) No heart to pump blood. D) Veins carry blood to heart Veins carry blood to heart. Show Answer Correct Answer: C) No heart to pump blood. 2. Which contains Oxygenated blood? A) Right ventricle. B) Right Atrium. C) Pulmonary artery. D) Left Ventricle. Show Answer Correct Answer: D) Left Ventricle. 3. When the blood leaves the heart, where does it exit? A) The lungs. B) The capillaries. C) Pulmonary vein. D) Aorta. Show Answer Correct Answer: D) Aorta. 4. How many liters of blood does the body hold? A) 5 liters. B) 10 liters. C) 1 liter. D) 3.5 liters. Show Answer Correct Answer: A) 5 liters. 5. If an artery becomes completely blocked, there is an immediate, high risk of ..... happening. A) Heart murmur. B) Heart attack. C) Emphysema. D) Artherosclerosis. Show Answer Correct Answer: B) Heart attack. 6. There are 3 layers to the heart. This is the outermost layer of the heart wall. A) Endothelium. B) Myocardium. C) Visceral pericardium (aka:epicardium). D) Mediastinum. Show Answer Correct Answer: C) Visceral pericardium (aka:epicardium). 7. The most muscular and powerful chamber of the heart is ..... A) Left ventricle. B) Right atrium. C) Right ventricle. D) Left atrium. Show Answer Correct Answer: A) Left ventricle. 8. What is a normal blood pressure reading? A) 120/80. B) 140/90. C) 160/100. D) None of above. Show Answer Correct Answer: A) 120/80. 9. This happens when the ventricles contract to send blood out: A) Systole. B) Diastole. Show Answer Correct Answer: A) Systole. 10. The red blood cells contain hemoglobins? A) True. B) False. Show Answer Correct Answer: A) True. 11. Large, dome like muscle under your lungs A) Diaphragm. B) Alveoli. C) Lungs. D) Trachea. Show Answer Correct Answer: A) Diaphragm. 12. Part of both the respiratory and the circulatory system (may have multiple answers) A) Arteries. B) Veins. C) Capillaries. D) Alveoli. Show Answer Correct Answer: C) Capillaries. 13. Once the blood has been through the lungs and re-enters the heart, how is it described? A) Deoxygenated. B) Coagulated. C) Oxygenated. D) Contaminated. Show Answer Correct Answer: C) Oxygenated. 14. Gets rid of bacteria and destroys them A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White blood cells. 15. Which side of the heart contains oxygen rich blood A) Left. B) Top. C) Right. D) Bottom. Show Answer Correct Answer: A) Left. 16. One function of the circulatory system is to? A) Transport oxygen, blood cells, nutrients, and hormones to the tissues of the body. B) Suspended in this liquid are blood cells. C) Transports these blood cells throughout the body. D) Breaking down sugars and fats in cells. Show Answer Correct Answer: A) Transport oxygen, blood cells, nutrients, and hormones to the tissues of the body. 17. Which of the following components, when increased, is LEAST likely to result in an increase in heart rate? A) Water. B) Salt. C) PH. D) Adrenaline. Show Answer Correct Answer: A) Water. 18. Vein that collects blood from head and neck..... A) Superior vena cava Urdva Brihatsira. B) Artery เฐงเฐฎเฐจเฐฟ. C) Aorta. D) Inferior vena cava is the inferior vena cava. Show Answer Correct Answer: A) Superior vena cava Urdva Brihatsira. 19. The blood vessels with the largest blood volume are found in the..... A) Heart. B) Capillary. C) Arteries. D) Vena. Show Answer Correct Answer: C) Arteries. 20. Your heart is the size of? A) Your leg. B) Your fist. C) A water bottle. D) A lung. Show Answer Correct Answer: B) Your fist. 21. What are the smallest chambers of the heart? These receive the blood. A) Atrium. B) Ventricle. C) Aorta. D) None of above. Show Answer Correct Answer: A) Atrium. 22. A TINY blood vessel that allows for the exchange between blood and cells in the tissue in the body is ..... A) Blood Vessel. B) Capillary. C) Vein. D) Artery. Show Answer Correct Answer: B) Capillary. 23. ..... connect the arteries to the veins. A) Arterioles. B) Vena cava. C) Venules. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 24. Which are the vessels that have valves to prevent blood from flowing backward? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 25. What sends blood to the organs A) Arteries. B) Veins. Show Answer Correct Answer: A) Arteries. 26. What is an embolus A) A valve. B) A foreign object in the blood. C) A vein. D) An element. Show Answer Correct Answer: B) A foreign object in the blood. 27. What type of blood cell has hemoglobin protein to carry oxygen? A) White Blood Cells. B) Red Blood Cells. Show Answer Correct Answer: B) Red Blood Cells. 28. What is the job of an artery? A) Brings blood away from the heart. B) Brings blood toward the heart. C) Connect arteries to veines and allows gas exchange. D) The heart beats irregularly due to a clogged artery. Show Answer Correct Answer: A) Brings blood away from the heart. 29. Blood transfusion is the A) Loss of blood. B) Transfer of blood. C) Contamination of blood. D) None of above. Show Answer Correct Answer: B) Transfer of blood. 30. What type of animals have an open circulatory system? A) Mammals. B) Birds. C) Insects. D) Fish. Show Answer Correct Answer: C) Insects. 31. The muscular tube that moves food from the mouth to the stomach? A) Esophagus. B) Small intestine. C) Stomach. D) Mouth. Show Answer Correct Answer: A) Esophagus. 32. What problem does coronary heart disease cause? A) It reduces the amount of oxygen that can get to the heart muscle. B) It increases the amount of oxygen that can get to the heart muscle. C) It increases the amount of blood that flows back into the heart. D) It causes blood to flow between the right and left sides of the heart. Show Answer Correct Answer: A) It reduces the amount of oxygen that can get to the heart muscle. 33. Red Blood Cells are produced in the ..... bone marrow. A) Yellow. B) Red. C) Blue. D) White. Show Answer Correct Answer: B) Red. 34. Blood leaves the heart for the lungs through the ..... A) Pulmonary Vein. B) Arteries. C) Pulmonary Artery. D) Capillaries. Show Answer Correct Answer: C) Pulmonary Artery. 35. The sites of exchange of wastes, nutrients, and gases between the blood and body cells are the ..... A) Veins. B) Arterioles. C) Capillaries. D) Arteries. Show Answer Correct Answer: C) Capillaries. 36. Atrioventricular valves prevent back flow into the atria A) False. B) True. Show Answer Correct Answer: B) True. 37. Choose the correct order showing vessels with GREATEST pressure to LOWEST pressure. A) Artery, vein, capillary. B) Artery, capillary, vein. C) Vein, capillary, artery. D) Capillary, vein, artery. Show Answer Correct Answer: A) Artery, vein, capillary. 38. Your diastole blood pressure is the pressure in your artery when: A) THE HEART IS AT REST. B) THE HEART IS CONTRACTING. C) THE HEART IS BOTH RELAXING AND CONTRACTING. D) THE VEINS ARE AT REST. Show Answer Correct Answer: A) THE HEART IS AT REST. 39. Which chamber RECEIVES blood RETURNING from the BODY? A) Right Ventricle. B) Right Atrium. C) Left Atrium. D) Left Ventricle. Show Answer Correct Answer: B) Right Atrium. 40. Blood capillaries were first observed by..... A) Marcello Malphigi. B) Rene Laennec Rene Laennec. C) William Harvey William Harvey. D) Gairilamo Fabrici. Show Answer Correct Answer: A) Marcello Malphigi. 41. Cardiovascular disease is NOT among the highest causes of death in Americans. A) False. B) True. Show Answer Correct Answer: A) False. 42. What type of muscle is the heart? A) Cardiac muscle. B) Skeletal muscle. C) Smooth muscle. D) None of above. Show Answer Correct Answer: A) Cardiac muscle. 43. Which of the following is NOT part of the cardiovascular system? A) Heart. B) Bones. C) Arteries. D) Veins. Show Answer Correct Answer: B) Bones. 44. Your heart, blood, and blood vessels make up the ..... A) Digestive system. B) Circulatory system. C) Integumentary system. D) Nervous system. Show Answer Correct Answer: B) Circulatory system. 45. When blood pressure is taken, the number on the bottom is the pressure during diastole. This correlates with which of the following? A) Ventricular contraction. B) Ventricular relaxation. C) Atrial relaxation. D) Atrial contraction. Show Answer Correct Answer: B) Ventricular relaxation. 46. Blood platelets release an enzyme to activate prothrombin is known as..... A) Thrombin Thrombin. B) Fibrin Fibrin. C) Fibrinogen Fibrinogen. D) Thrombokinase is thrombokinase. Show Answer Correct Answer: D) Thrombokinase is thrombokinase. 47. Your heart is an example of which type of muscle? A) Involuntary. B) A big one. C) Voluntary. D) Bicep. Show Answer Correct Answer: A) Involuntary. 48. Why is the fish able to only have 1 atrium and 1 ventricle? A) Gas exchange is efficient and aquatic. B) Have gills. C) Operculum pumps water out fast. D) None of above. Show Answer Correct Answer: A) Gas exchange is efficient and aquatic. 49. TYPE of blood flow that cycles from the right ventricle to the lungs and back to the left atrium A) Pulmonary circulation. B) Systemic circulation. Show Answer Correct Answer: A) Pulmonary circulation. 50. ..... is part of nutrition and takes place in the respiratory system. A) Inhale. B) Gas exchange. C) Exhale. D) Respiration. Show Answer Correct Answer: D) Respiration. 51. A tiny, narrow blood vessel that allows wastes, oxygen, and nutrients to pass between the blood and cells is: A) A venule. B) A capillary. C) A vein. D) An artery. Show Answer Correct Answer: B) A capillary. 52. When a group of organs work together to perform a particular function they create a/an A) Organism. B) Organ. C) Organ system. D) Tissue. Show Answer Correct Answer: C) Organ system. 53. Blood vessels directly involved in both internal and external respiration: A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 54. Should experiments be repeated over and over to see if the results are the same each time? A) No. B) Yes. Show Answer Correct Answer: B) Yes. 55. The largest vein in the body is the; A) Aorta. B) Vena cava. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: B) Vena cava. 56. Occurs when the ventricles of the heart are unable to contract effectively and blood pools in the heart A) Heart Failure. B) Arteriosclerosis. C) Claudication. D) Peripheral Vascular Disease. Show Answer Correct Answer: A) Heart Failure. 57. What is the role of myoglobin? A) Reduce affinity for oxygen. B) To carry four molecules of oxygen. C) To allow aerobic respiration to continue for longer. D) None of above. Show Answer Correct Answer: C) To allow aerobic respiration to continue for longer. 58. What does the spleen do? A) Produces antibodies to target bacteria. B) Nothing. C) Produces lymphocytes, stores blood cells, and destroys old blood cells. D) Removes toxins and bacteria. Show Answer Correct Answer: C) Produces lymphocytes, stores blood cells, and destroys old blood cells. 59. What are the substances that is carried by circulatory system? A) Blood. B) Lipase. C) Oxygen. D) Haemolymph. Show Answer Correct Answer: C) Oxygen. 60. The process of breakdown of old and worn out RBCs is known as ..... A) Bilirubin. B) Leveling. C) Erythropenia. D) Haemolysis. Show Answer Correct Answer: D) Haemolysis. 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