This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 161 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 161 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The right and left ventricles are separtated longitudinally by the ..... A) Septum. B) Superior vena cava. C) Myocardium. D) Coronary. Show Answer Correct Answer: A) Septum. 2. A set of things that work together as a whole A) Organ. B) System. C) Tissue. D) Organism. Show Answer Correct Answer: B) System. 3. Which blood component is responsible for helping the blood to clot when it flows outside the body? A) Red blood cells. B) Plasma. C) Platelets. D) White blood cells. Show Answer Correct Answer: C) Platelets. 4. What are the two main divisions of the nervous system? A) The brain and spinal cord. B) The central nervous and peripheral nervous system. C) The neurons and the dendrites. D) The cerebrum and the medulla. Show Answer Correct Answer: B) The central nervous and peripheral nervous system. 5. How long is the blood vessel A) 5000. B) 100, 000. C) 4000. D) 60, 000. Show Answer Correct Answer: D) 60, 000. 6. The beginning of the respiratory system that warms and moistens the air. A) Diaphragm. B) Bronchi. C) Nose. D) Trachea. Show Answer Correct Answer: C) Nose. 7. Which of the descriptions about the semilunar valve is wrong? A) They contain heart tendons. B) They prevent backflow of blood to ventricles. C) They are located in the blood vessels. D) They have three flaps. Show Answer Correct Answer: A) They contain heart tendons. 8. This chamber of the heart pumps the blood back out to the body cells through the Aorta A) Left Ventricle. B) Right Atrium. C) Right Ventricle. D) Left Atrium. Show Answer Correct Answer: A) Left Ventricle. 9. Blood cells are also Referred as ..... A) Leucocytes. B) Erythrocytes. C) Thrombocytes. D) Corpuscles. Show Answer Correct Answer: D) Corpuscles. 10. The blood cell known as the soldiers of the body. A) Plasma. B) White blood cell. C) Red blood cell. D) Blood. Show Answer Correct Answer: B) White blood cell. 11. What is the function of the pulmonary circuit? A) Sends oxygen-poor blood to the heart. B) Brings oxygen-rich blood from the tissues. C) Sends oxygen-poor blood to the tissues. D) Sends oxygen-poor blood to the lungs. Show Answer Correct Answer: D) Sends oxygen-poor blood to the lungs. 12. Where is the blood pumped to once it leaves the right side of the heart? A) To the lungs. B) To the body. C) To the heart. D) To the head. Show Answer Correct Answer: A) To the lungs. 13. After running 1, 500 meters, the athlete experienced irregularities in his/her heart rate. This was an indication that the heart rate was altered. What is the medical term for this condition? A) Arrhythmia. B) Murmur. C) Arteriosclerosis. D) Heart failure. Show Answer Correct Answer: A) Arrhythmia. 14. The blood vessels allow blood to circulate from the heart to the rest of the body. A) Esophagus. B) Veins. C) Arteries. D) Platelets. Show Answer Correct Answer: C) Arteries. 15. They convey blood throughout the body. A) Heart Valves. B) Cells. C) Blood Vessels. D) None of above. Show Answer Correct Answer: C) Blood Vessels. 16. Which division of the peripheral nervous system transmits signals from sense organs to the CNS? A) Autonomic Division. B) Sensory Division. C) Somatic Division. D) Motor Division. Show Answer Correct Answer: B) Sensory Division. 17. In humans, what type of circuit is where cell metabolism occurs? A) Capillaries. B) Artery. C) Vein. D) All three types of circuits are correct. Show Answer Correct Answer: A) Capillaries. 18. Your heart is made of ..... A) Nerves. B) Capillaries. C) Muscles. D) None of above. Show Answer Correct Answer: C) Muscles. 19. What are the reactants (INgredients)of cellular respiration? A) Oxygen and Glucose. B) Carbon Dioxide and Oxygen. C) Water and Carbon Dioxide. D) Water Oxygen Energy. Show Answer Correct Answer: A) Oxygen and Glucose. 20. What would happen if the walls of arteries were to thin? A) They would expand. B) They would allow more blood to flow. C) They would stop blood flowing. D) They would burst. Show Answer Correct Answer: D) They would burst. 21. Its contain of blood cells( RBC, WBC, Platelets ) p lasma A) Hemoglobin. B) Blood. Show Answer Correct Answer: B) Blood. 22. The rhythmic sounds lub and dub' arise due to..... in heart. Heart sounds called lub dub are caused by: A) Diastole of heart chambers. B) Systole of heart chambers. C) Opening of valves. D) Closure of valves. Show Answer Correct Answer: D) Closure of valves. 23. This is pointing to the: A) Left Ventricle. B) Left Atrium. C) Right Ventricle. D) Right Atrium. Show Answer Correct Answer: A) Left Ventricle. 24. The action of sending blood around the body A) Blood. B) Heart. C) Capillaries. D) Pump. Show Answer Correct Answer: D) Pump. 25. The function of this organ is to pump blood. A) Heart. B) Small Intestine. C) Stomach. D) None of above. Show Answer Correct Answer: A) Heart. 26. Supply the heart. A) Coronary arteries. B) Aortic arch. C) Phrenic arteries. D) Thoracic aorta. Show Answer Correct Answer: A) Coronary arteries. 27. These cells fight infections in the body A) White blood cells. B) Red blood cells. Show Answer Correct Answer: A) White blood cells. 28. Why are you not able to control your reflexes? A) Because they are controlled by your circulatory system. B) Because they are controlled by voluntary muscles. C) Because they are controlled by your brain. D) Because they are controlled by your spinal cord. Show Answer Correct Answer: D) Because they are controlled by your spinal cord. 29. The chamber of the heart that receives deoxygenated blood from the superior and inferior vena cava. A) Right atrium. B) Right ventricle. C) Left ventricle. D) Left atrium. Show Answer Correct Answer: A) Right atrium. 30. Small fragment of a cell; helps form blood clots A) White blood cell. B) Red blood cell. C) Platelet. D) Plasma. Show Answer Correct Answer: C) Platelet. 31. How much does the human heart weigh? A) 445 grams. B) 450 grams. C) 550 grams. D) 455 grams. Show Answer Correct Answer: B) 450 grams. 32. What are white blood cells? A) They are the same a red blood cells, but white. B) They fight off disease and infection. C) They carry food to your muscles. D) They activate when you do exercise. Show Answer Correct Answer: B) They fight off disease and infection. 33. Fix veins and arteries when you have a cut A) Platelets. B) Veins. C) Plasma. D) Heart. Show Answer Correct Answer: A) Platelets. 34. Bicuspid valve is between the left auricle and left ventricle- A) False. B) True. Show Answer Correct Answer: B) True. 35. Which pulmonary carries blood TO the lungs? A) Artery. B) Vein. Show Answer Correct Answer: A) Artery. 36. I have thick walls and a small lumen A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Arteries. 37. Blood circulating from the cells to blood vessels close to the surface of the skin helps regulate body temperature. A) False. B) True. Show Answer Correct Answer: B) True. 38. The contraction phase of the cardiac cyclce is called ..... It represents the higher number in reading blood pressure. A) Mitral. B) Systolic. C) Tricuspid. D) Diastolic. Show Answer Correct Answer: B) Systolic. 39. Which ventricle has thicker muscle wall? A) Right ventricle. B) Left ventricle. Show Answer Correct Answer: B) Left ventricle. 40. What are the thinnest blood vessels called? A) Veins. B) Arteries. C) The aorta. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 41. Ventricular systole causes what to happen to the blood? A) Push the blood out of the heart with high speed through the veins. B) Push the blood out with high speed into the atriums. C) Push the blood out of the heart with high speed through the arteries. D) Allows the ventricles to fill with blood. E) Allows the atriums to fill with blood. Show Answer Correct Answer: C) Push the blood out of the heart with high speed through the arteries. 42. Which blood vessel will have the greatest amount of oxygen A) Jugular. B) Vena cava. C) Pulmonary artery. D) Femoral artery. Show Answer Correct Answer: D) Femoral artery. 43. Which of the following carries oxygen in the blood? A) Plasma. B) White blood cells. C) Red Blood Cells. D) Platelets. Show Answer Correct Answer: C) Red Blood Cells. 44. What is not a feature of natural selection? A) A competition for resources. B) C selection by humans. C) B production of many offspring. D) D variation within the population. Show Answer Correct Answer: B) C selection by humans. 45. In which part does the small circulation exchange gases? A) Lung. B) Tissue. C) Capillaries. D) Tim. Show Answer Correct Answer: A) Lung. 46. What do you call to the part of the heart that receives blood from the body? A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: A) Right atrium. 47. ..... cells are responsible for immunological memory A) Helper cells. B) Memory cells. C) NK cells. D) Plasma cells. Show Answer Correct Answer: B) Memory cells. 48. Freshly oxygenated blood transported from the lungs is first recieved by which chamber? A) Right atrium. B) Right ventricle. C) Left ventricle. D) Left atrium. Show Answer Correct Answer: D) Left atrium. 49. Which is known as the universal donor? A) Type B. B) Type AB. C) Type A. D) Type O. Show Answer Correct Answer: D) Type O. 50. What level of organization is blood? A) Organ system. B) Cell. C) Tissue. D) Organ. Show Answer Correct Answer: C) Tissue. 51. What carry blood to and from the body? A) Pulmonary. B) Systemic. Show Answer Correct Answer: B) Systemic. 52. Small blood vessels that connect arterioles to venules A) Vascular. B) Venous vessels. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 53. Double Circulation involves- A) Systemic Circulation. B) Pulmonary Circulation. C) Both systemic and pulmonary circulation. D) None of the above. Show Answer Correct Answer: C) Both systemic and pulmonary circulation. 54. Organ found that exchanges oxygen and carbon dioxide with the blood A) Vein. B) Lungs. C) Respiratory system. D) Cardiovascular system. Show Answer Correct Answer: B) Lungs. 55. What is the Cardiovascular System also know as? A) Muscular System. B) Nervous System. C) Circulatory System. D) Respiratory System. Show Answer Correct Answer: C) Circulatory System. 56. Our circulatory system is made up our heart, our blood vessels and the blood. A) True. B) False. Show Answer Correct Answer: A) True. 57. In a(n) ..... circulatory system, the heart pumps blood through a complete network of vessels and capillaries. A) Open. B) Closed. Show Answer Correct Answer: B) Closed. 58. A scientist pumps water to the aorta of a dissected pig heart. Where will the water go? A) Vena cava. B) Aorta. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: B) Aorta. 59. All energy on Earth ultimately comes from what source? A) Sun. B) Water. C) Consumers. D) Oxygen. Show Answer Correct Answer: A) Sun. 60. The pulmonary arteries carry ..... blood ..... the heart. A) Oxygenated; away from. B) Deoxygenated; from the lungs back to. C) Oxygenated; from the lungs back to. D) Deoxygenated; away from. Show Answer Correct Answer: D) Deoxygenated; away from. ← 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