This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 190 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 190 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the function of the atrium in the heart? A) It receives blood coming in from the veins. B) It closes the valves of the heart. C) It pumps blood into the arteries. D) It filters the blood. Show Answer Correct Answer: A) It receives blood coming in from the veins. 2. The part of the heart that receives blood from all over the body is..... A) Left porch. B) Left room. C) Right porch. D) Right room. Show Answer Correct Answer: C) Right porch. 3. Which WBC kills parasites? A) Neutrophils. B) Basophils. C) Monocytes. D) Eosinophils. Show Answer Correct Answer: D) Eosinophils. 4. Largest artery in the heart A) Superior vena cava. B) Aorta. C) Septum. D) Left atrium. Show Answer Correct Answer: B) Aorta. 5. What is removed from the blood when it travels to the lungs? A) Carbon dioxide. B) Red blood cells. C) Virus. D) Oxygen. Show Answer Correct Answer: A) Carbon dioxide. 6. Returns blood from body areas below the diaphragm- A) Inferior vena cava. B) Intercostal arteries. C) Superior mesenteric arteries. D) Superior vena cava. Show Answer Correct Answer: A) Inferior vena cava. 7. How many chambers does the heart have and what are they called. A) 3. B) 4. C) 2. D) 5. Show Answer Correct Answer: B) 4. 8. Receiving chamber for oxygenated blood A) RV. B) RV. C) THE. D) LV. Show Answer Correct Answer: C) THE. 9. In the pig heart what was the hard white tissue found at the top of the heart? A) Carbohydrates. B) Bone. C) Fat. D) Muscle. Show Answer Correct Answer: C) Fat. 10. Which valve has 3 cusps and is in the right side? A) Aortic. B) Semilunar. C) Bicuspid(Mitral). D) Tricuspid. Show Answer Correct Answer: D) Tricuspid. 11. Contains no nucleus. A) RED BLOOD CELLS. B) PLASMA. C) WHITE BLOOD CELLS. D) PLATELETS. Show Answer Correct Answer: A) RED BLOOD CELLS. 12. This triggers contraction in the atria: A) AV Bundles. B) AV node. C) QT node. D) Because of the difference. Show Answer Correct Answer: D) Because of the difference. 13. What other body System does the Circulatory System work together with? A) Respiratory system. B) Muscular System. C) Digestive System. D) Skeletal System. Show Answer Correct Answer: A) Respiratory system. 14. Capillaries are located: A) In alveolar sac. B) Above arteries and veins. C) Oxygen-poor. D) In between arteries and veins. Show Answer Correct Answer: D) In between arteries and veins. 15. The innermost muscular layer of the cardiac muscle is called ..... A) Pericardium. B) Myocardium. C) Epicardium. D) Endocardium. Show Answer Correct Answer: D) Endocardium. 16. When blood is traveling away from the heart, in which of the following would you find it? A) Veins. B) Capillaries. C) Arteries. D) Venules. Show Answer Correct Answer: C) Arteries. 17. Substance present in the RBC which is responsible for the oxygen-carrying capacity of the cells A) Hemolymph. B) Hemolysis. C) Hemoglobin. D) Hemocel. Show Answer Correct Answer: C) Hemoglobin. 18. The blood vessels that carry blood rich in carbon dioxide to the lungs are..... A) Pulmonary artery. B) Vena. C) Pulmonary vein. D) Capillary. Show Answer Correct Answer: A) Pulmonary artery. 19. This is another name for "high blood pressure" .This is a condition where fat builds up and hardens inside of an artery. A) STROKE. B) HYPERTENSION. C) HEART ATTACK. D) ATHEROSCLEROSIS. Show Answer Correct Answer: D) ATHEROSCLEROSIS. 20. A heart attack happens when the supply of blood to the ..... is suddenly blocked A) Heart. B) Stomach. C) Kidney. D) None of above. Show Answer Correct Answer: A) Heart. 21. Some ways to take care of our digestive system are ..... A) Have a balanced diet and eat spicy food. B) Wash hands before eat and do exercise regularly. C) Do irregular eating and physical activities. D) Vomit to prevent from being fat and take ORS solution. Show Answer Correct Answer: B) Wash hands before eat and do exercise regularly. 22. Which is the largest artery of the heart? A) Aorta. B) Capillary. C) Superior vena cava. D) Inferior vena cava. Show Answer Correct Answer: A) Aorta. 23. Finish the sentence. The heart ..... A) Pumps deoxygenated blood to the lungs and oxygenated blood to the body. B) Pumps oxygenated blood to the lungs and deoxygenated blood to the body. Show Answer Correct Answer: A) Pumps deoxygenated blood to the lungs and oxygenated blood to the body. 24. What do the chemicals in our food combine with inside our bodies to produce the fuel we need? A) Ketchup. B) Hydrogen. C) Oxygen. D) Potassium. Show Answer Correct Answer: C) Oxygen. 25. The valve between the left atrium and left ventricle that prevents blood from flowing back into the left atrium is the ..... A) Tricuspid valve. B) Mitral valve. C) Pulmonary valve. D) Aortic valve. Show Answer Correct Answer: B) Mitral valve. 26. If a person has a heart rate slower than 60 beats per minute, it is called ..... * A) Bradycardia. B) Tachycardia. C) Arrhythmia. D) Cardiomyopathy. Show Answer Correct Answer: A) Bradycardia. 27. What are platelets job? A) To fight infections. B) To circulate blood. C) To oxygenate blood. D) To clot blood & wounds. Show Answer Correct Answer: D) To clot blood & wounds. 28. The system of blood vessels and the heart. This system circulates blood to every cell in the body. A) Nervous system. B) Skeletal system. C) Muscular system. D) Circulatory system. Show Answer Correct Answer: D) Circulatory system. 29. The wall of the heart is made up of ..... A) Epicardium. B) Myocardium. C) Endocardium. D) All of these. Show Answer Correct Answer: D) All of these. 30. Which of the following should be OMITTED from the list? A) Artery. B) Lungs. C) Aorta. D) Veins. Show Answer Correct Answer: B) Lungs. 31. The main way materials are transported throughout the body. A) Blood. B) The Heart. C) I don't know. D) None of above. Show Answer Correct Answer: A) Blood. 32. The scientific name for Heart Disease is what? A) Cardiovascular Disease. B) Carpal Tunnel Syndrome. C) Septicemia. D) Swine Influenza. Show Answer Correct Answer: A) Cardiovascular Disease. 33. A system of the body which pumps blood too and from the lungs to become oxygenated. A) Systemic. B) Pulmonary. Show Answer Correct Answer: B) Pulmonary. 34. The valve between the right atrium and right ventricle is the A) Bicuspid valve. B) Aortic valve. C) Tricuspid valve. D) Pulmonary valve. Show Answer Correct Answer: C) Tricuspid valve. 35. Blood does not consist of ..... A) Red Blood Cells. B) Capillaries. C) Blood Plasma. D) Platelets. Show Answer Correct Answer: B) Capillaries. 36. Is it possible to have a artificial heart (mechanical) replacement A) Yes. B) No. Show Answer Correct Answer: A) Yes. 37. The AV node is located in the septum close to the tricuspid valve. A) True. B) False. Show Answer Correct Answer: A) True. 38. What is the name of the group of blood vessels that contain valves and bring blood to the heart? A) Veins. B) Lymph Tubes. C) Capillaries. D) Arteries. Show Answer Correct Answer: A) Veins. 39. Which direction could Harvey push blood in a vein on the arm? A) Down the arm towards the hand. B) Up the arm, towards the shoulder. C) Both up and down the arm. D) He could not push the blood in either direction, only the heart can do that. Show Answer Correct Answer: B) Up the arm, towards the shoulder. 40. The gas known as ..... is needed to stay alive and properly. A) Nitrogen. B) Oxygen. C) Helium. D) Carbon dioxide. Show Answer Correct Answer: B) Oxygen. 41. What is the average life of RBC? A) 120 days. B) 15 days. C) 3 days. D) 40 days. Show Answer Correct Answer: A) 120 days. 42. The smallest type of blood vessel that connects the other vessels together is the A) Vein. B) Capillary. C) Artery. D) Nerve. Show Answer Correct Answer: B) Capillary. 43. When a patient gets a blood test and has low RBC count, this indicates that the patient likely has A) Anemia. B) Infection. C) A clotting disorder. D) Nothing. Show Answer Correct Answer: A) Anemia. 44. RETURNS BLOOD FROM UPPER BODY A) AORTA. B) INFERIOR VENA CAVA. C) SUPERIOR VENA CAVA. D) PULMONARY ARTERY. Show Answer Correct Answer: C) SUPERIOR VENA CAVA. 45. Which structure is the flap that closes over the trachea, preventing food from entering the larynx? A) Tonsils. B) Palate. C) Epiglottis. D) Pharynx. E) Vocal cords. Show Answer Correct Answer: C) Epiglottis. 46. The system that sends electrical signals to the heart that tell it to beat. A) Respiratory. B) Digestive. C) Nervous. D) Lymphatic. Show Answer Correct Answer: C) Nervous. 47. Write the equation for calculating cardiac output A) Q = SV x HR. B) MV = TV x BPM. C) MHR = 220-age. D) None of above. Show Answer Correct Answer: A) Q = SV x HR. 48. What is true of pulmonary circulation? A) Carries deoxygenated blood to lungs to be oxygenated and oxygenated blood to the heart. B) Carries oxygenated blood to the lungs and deoxygenated blood to the heart. C) Returns deoxygenated blood from the body to the heart and oxygenated blood to the rest of the body. D) None of above. Show Answer Correct Answer: A) Carries deoxygenated blood to lungs to be oxygenated and oxygenated blood to the heart. 49. Guess what? After taking a refreshing trip through the lungs and loading up on oxygen, where does this rejuvenated blood head to next? A) Right atrium. B) Left ventricle. C) Right ventricle. D) Left atrium. Show Answer Correct Answer: D) Left atrium. 50. These are very fine tubes in which an artery branches A) Heart. B) Veins. C) Capillaries. D) Arteries. Show Answer Correct Answer: C) Capillaries. 51. The stomata are controlled by ' ..... ' shaped' guard cells A) Pear. B) Kentucky Fried Chicken. C) Banana. D) Sausage. Show Answer Correct Answer: D) Sausage. 52. Which of the following statements is true regarding the size of white blood cells compared to red blood cells? A) White blood cells are smaller than red blood cells. B) White blood cells are the same size as red blood cells. C) White blood cells are larger than red blood cells. D) The size of white blood cells varies, but they are generally the same size as red blood cells. Show Answer Correct Answer: C) White blood cells are larger than red blood cells. 53. True or False:Blood carries Carbon Dioxide to the rest of our bodies. A) False. B) True. Show Answer Correct Answer: A) False. 54. Which is a measure of the electrical events that occur in a single heart beat? A) Magnetic Resonance Imagery (MRI). B) Electrocardiogram. C) Echocardiogram. D) Angiogram. Show Answer Correct Answer: B) Electrocardiogram. 55. Which blood pressure reading would indicate low blood pressure (hypotension)? (a) A) 145/95. B) 120/80. C) 110/70. D) A 80/50. Show Answer Correct Answer: D) A 80/50. 56. In the heart, Each side has an upper chamber ( Called ..... and a lower chamber ( called ..... ). A) Atrium, ventricle. B) Ventricle, atrium. C) Atrium, vein. D) Artery, vein. Show Answer Correct Answer: A) Atrium, ventricle. 57. Which of the following statements about blood is false? A) Contains buffers that control pH. B) It's red. C) Is about 55 percent plasma. D) Normal pH is 6.8 to 7.0. Show Answer Correct Answer: D) Normal pH is 6.8 to 7.0. 58. What happens in pulmonary circulation A) Circulation in the heart. B) Circulation to the body. C) Circulation to the brain. D) Circulation to the lungs. Show Answer Correct Answer: D) Circulation to the lungs. 59. What body systems are working together with internal respiration (the gas exchange between the capillaries and alveoli) in the lungs? A) Muscular and Respiratory. B) Respiratory & Circulatory. C) Respiratory & Integumentary. D) Muscular and Circulatory. Show Answer Correct Answer: B) Respiratory & Circulatory. 60. Known as the natural pacemaker of the heart A) Cardiac valves. B) Purkinje fibers. C) Sinoatrial node. D) Internodal tracts. Show Answer Correct Answer: C) Sinoatrial node. ← 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