This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 104 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 104 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The ..... is one of the heart's four chambers. A) Aorta. B) Artery. C) Vein. D) Atrium. Show Answer Correct Answer: D) Atrium. 2. Which is an example of a unicellular organism? A) Dog. B) Beetle. C) Algae. D) Flower. Show Answer Correct Answer: C) Algae. 3. Blood also helps in maintaining a constant body temperature of ..... A) 97. 5 degree F. B) 92.4 degree F. C) 98.6 degree F. D) 96.6 degree F. Show Answer Correct Answer: C) 98.6 degree F. 4. Which Part Of The Respiratory System Takes In Oxygen? A) Diaphragm. B) Nose. C) Windpipe. D) Lung. Show Answer Correct Answer: D) Lung. 5. Gas exchanged happens in two places ..... and ..... A) Oxygen and carbon dioxide. B) Cells and lungs. C) Lungs and heart. D) Arteries and veins. Show Answer Correct Answer: B) Cells and lungs. 6. The meaning in spanish of the word hemoglobin is A) Platelets. B) Hemoglobin. C) Antibodies. D) None of above. Show Answer Correct Answer: B) Hemoglobin. 7. State the function of the aorta. A) To take deoxygenated blood to the body. B) To take deoxygenated blood to the lungs. C) To take oxygenated blood to the body. D) To take oxygenated blood to the lungs. Show Answer Correct Answer: C) To take oxygenated blood to the body. 8. The patient is unresponsive. How would you like to proceed A) Call for help. B) Look at the chest for movement. C) Check pulse. D) Start chest compression. Show Answer Correct Answer: A) Call for help. 9. It is a structure that separates the left and right ventricles. A) Pleura. B) Septum. C) Valves. D) Plasma. Show Answer Correct Answer: B) Septum. 10. What happens to your muscles when you move them? A) Your muscles become stronger. B) Your muscles feel good. C) Your muscles become tired. D) None of above. Show Answer Correct Answer: A) Your muscles become stronger. 11. Which factor makes your pulse rate change? A) Height. B) Complexion. C) Physical activity. D) Gender. Show Answer Correct Answer: C) Physical activity. 12. Each side of the heart has ..... A) Upper and lower chambers. B) Upper and lower lobes. C) Right and left chambers. D) Four chambers. Show Answer Correct Answer: A) Upper and lower chambers. 13. The ..... cells send electric currents to the heart and set the pace at which the heart beats. A) Ventricle. B) Pacemaker. C) Valve. D) Atrium. Show Answer Correct Answer: B) Pacemaker. 14. Which of this following is the characteristic of vein A) Have thicker wall. B) Composed of one layer of cells. C) Have many valves to keep blood flowing in one direction. D) We can feel the pulse. Show Answer Correct Answer: C) Have many valves to keep blood flowing in one direction. 15. What is happening when the heart cannot pump enough blood to meet the body's needs? A) Myocardial infarction. B) Congestive heart failure. C) Coronary artery disease. D) Hypertension. Show Answer Correct Answer: B) Congestive heart failure. 16. What does de-oxygenated mean? A) Low in oxygen. B) High in oxygen. Show Answer Correct Answer: A) Low in oxygen. 17. True or False:The circulatory system does not help the body regulate temperature A) False. B) True. Show Answer Correct Answer: A) False. 18. The right atrium is separated from the right ventricle by the ..... A) Right Valve. B) Atrioventricular Valve. C) Deoxygenated Valve. D) Semilunar Valve. Show Answer Correct Answer: B) Atrioventricular Valve. 19. True or False:You have more capillaries in your body than any other blood vessel. A) True. B) False. Show Answer Correct Answer: A) True. 20. Where do you find your pulse? A) Neck, Wrist & Chest. B) In your ears. C) Pinky finger only. D) Neck and pinky finger only. Show Answer Correct Answer: A) Neck, Wrist & Chest. 21. Blood traveling from the heart, to the rest of the body and back to the heart is called the ..... circuit. A) Systemic. B) Full body. C) Pulmonary. D) Heart to lung. Show Answer Correct Answer: A) Systemic. 22. The ..... branches into a right and left pulmonary artery A) Pulmonary Vein. B) Aorta. C) Vena Cava. D) Pulmonary Trunk. Show Answer Correct Answer: D) Pulmonary Trunk. 23. Receives deoxygenated blood from the body through the vena cava and pumps it into the right ventricle which then sends it to the lungs to be oxygenated. A) Left Ventricle. B) Right Atrium. C) Right Ventricle. D) Left Atrium. Show Answer Correct Answer: B) Right Atrium. 24. Why is the left ventricular muscle of the heart thicker than the right? A) To pump blood further and under higher pressure. B) To regulate body temperature. C) To pump blood to the lungs. D) To produce antibodies. Show Answer Correct Answer: A) To pump blood further and under higher pressure. 25. The blood is low in oxygen in the right ventricle. A) False. B) True. Show Answer Correct Answer: B) True. 26. It produce certain proteins known as antibodies, which act against foreign substances A) Eosinophyl. B) Lymphocytes. C) Phagocytes. D) Lymph nodes. Show Answer Correct Answer: B) Lymphocytes. 27. Which part of the blood help forms blood clots to prevent the loss of blood and close wounds? A) Plasma. B) Platelets. C) RBC. D) WBC. Show Answer Correct Answer: B) Platelets. 28. What are the names of the two systems in the circulatory system? A) Systemic & Respiratory. B) Respiratory & Circulatory. C) Arteries & Veins. D) Pulmonary & Systemic. Show Answer Correct Answer: D) Pulmonary & Systemic. 29. Right part of human heart contains A) No blood. B) Oxygenated blood. C) Deoxygenated blood. D) Mixed blood. Show Answer Correct Answer: C) Deoxygenated blood. 30. What pumps the blood from the right ventricle to the lungs? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Arteries. 31. Blood is mainly composed of ..... A) Red Blood Cells. B) Plasma. C) Platelets. D) White Blood Cells. Show Answer Correct Answer: B) Plasma. 32. Oxygenated blood gets away from the heart and distributed through the body by A) Vena cava. B) Aorta. Show Answer Correct Answer: B) Aorta. 33. This disease makes people difficult in passing feces. This happens because of the lack of fiber. The name of the disease is ..... A) Typhoid. B) Gastritis. C) Diarrhea. D) Constipation. Show Answer Correct Answer: D) Constipation. 34. True or false? The faster your heart beats, the slower your pulse would be. A) True. B) False. Show Answer Correct Answer: B) False. 35. Which of the following describes the function of the aorta A) It carries oxygenated blood to the heart. B) It carries deoxygenated blood to the lungs. C) It carries oxygenated blood to the body. D) It carries deoxygenated blood to the heart. Show Answer Correct Answer: C) It carries oxygenated blood to the body. 36. Why do arteries have very thick and elastic walls. A) The protect the blood inside. B) To prevent coronary heart disease,. C) So substance like oxygen can't move through the walls. D) To withstand the large amount of pressure in the blood they carry. Show Answer Correct Answer: D) To withstand the large amount of pressure in the blood they carry. 37. The names of the top chambers are? A) Right and left atrium. B) Right and left ventricle. Show Answer Correct Answer: A) Right and left atrium. 38. What is the function of the white blood cells in the circulatory system? A) Produce insulin. B) Fight off infections and foreign invaders. C) Transport oxygen to the body. D) Regulate blood pressure. Show Answer Correct Answer: B) Fight off infections and foreign invaders. 39. Arteries walls are A) Very thick. B) Thin. C) Very thin (only 1 layer of cell). D) None of above. Show Answer Correct Answer: A) Very thick. 40. The atrium are the "upstairs" chambers of the heart and these parts are the "downstairs" chambers: A) Valves. B) Blood. C) Ventricles. D) Candy hearts. Show Answer Correct Answer: C) Ventricles. 41. What blood type can receive blood from anyone? A) B. B) A. C) AB. D) O. Show Answer Correct Answer: C) AB. 42. What is the largest artery in the human body called? (hint:descending and ascending) A) Pulmonary Artery. B) Inferior Vena Cava. C) Superior Vena Cava. D) Aorta. Show Answer Correct Answer: D) Aorta. 43. Which is generally the largest? A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Arteries. 44. Contraction stage of both atria and ventricles is known as ..... కర్ణికలు జఠరికలు సంకోచించిన దశను ..... అంటారు. A) Blood pressure. B) Systole Systole. C) Diastole. D) All the above పైవన్నీ. Show Answer Correct Answer: B) Systole Systole. 45. When measuring blood pressure the bottom number is the diastolic blood pressure? A) True. B) False. Show Answer Correct Answer: A) True. 46. Blood brings ..... and ..... to all parts of the body so they can keep working. A) Oxygen; carbon dioxide. B) Carbon dioxide; waste. C) Carbon dioxide; nutrients. D) Oxygen; nutrients. Show Answer Correct Answer: D) Oxygen; nutrients. 47. A faulty valve in the heart is dangerous because A) It causes the heart to work harder. B) It allows unwanted back flow of blood. C) Both are correct. D) None of above. Show Answer Correct Answer: C) Both are correct. 48. Biologist who discovered valves in veins? Who was the biologist who discovered valves in veins? A) William Harvey William Harvey. B) Marcello Mallhigi is our cello Malpigi. C) Giriloma Fabrici Giriloma Fabrici. D) Robert Heckel Robert Heckel. Show Answer Correct Answer: C) Giriloma Fabrici Giriloma Fabrici. 49. What is oxygen needed for? A) Make ATP energy. B) To make glucose. C) To take in sunlight. D) None of the above. Show Answer Correct Answer: A) Make ATP energy. 50. This is a condition where fat builds up and hardens inside of an artery. A) Atherosclerosis. B) Heart failure. C) Stroke. D) Heart attack. Show Answer Correct Answer: A) Atherosclerosis. 51. What are red coloured veins in human body called? A) Veins. B) Arteries. C) Ventricles. D) Atriums. Show Answer Correct Answer: B) Arteries. 52. A ..... is a tube that carries blood throughout the body. A) Heart. B) Blood vessel. C) Pump. D) None of above. Show Answer Correct Answer: B) Blood vessel. 53. Which person would have stronger heart? A) Joe-high stroke volume, low heart rate. B) Bob-low stroke rate, high heart rate. C) Ms. Matthews-heartless. D) None of above. Show Answer Correct Answer: A) Joe-high stroke volume, low heart rate. 54. What is the definition of the Cardiac Cycle? A) The contraction of the atria. B) The sequence of events that occur during one complete heartbeat. C) The contraction and relaxation of the ventricles. D) The circulation of blood in the heart. Show Answer Correct Answer: B) The sequence of events that occur during one complete heartbeat. 55. Which blood vessel takes blood AWAY from the heart? A) Arteries. B) Capillaries. C) Veins. D) All of them. Show Answer Correct Answer: A) Arteries. 56. Myocardial infarctions result from: A) Weakened heart muscle. B) Low blood pressure. C) Damaged heart valves. D) Obstruction of blood flow to the heart muscle. Show Answer Correct Answer: D) Obstruction of blood flow to the heart muscle. 57. What subsatnce in the mouth conatins an enzyme that genins chemical digestion? A) Fiber. B) Saliva. C) Pepsin. D) Mucus. Show Answer Correct Answer: B) Saliva. 58. The ..... and ..... direct your heart's function A) Brain and spine. B) Brain and nervous system. C) Heart and lungs. D) None of above. Show Answer Correct Answer: B) Brain and nervous system. 59. Blood cells that fight off diseases A) Red blood cells. B) White blood cells. Show Answer Correct Answer: B) White blood cells. 60. Heart:Blood Lungs: ..... A) Carbon dioxide. B) Vessels. C) Oxygen. D) Valve. Show Answer Correct Answer: C) Oxygen. ← 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