This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 81 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 81 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The relaxation phase of cardiac cycle is A) Systole. B) Folem. C) Xylem. D) Diastole. Show Answer Correct Answer: D) Diastole. 2. Arteries branch out into smaller network of blood called veins A) False. B) True. Show Answer Correct Answer: A) False. 3. Where food enters right AFTER the esophagus and is broken down even more using chemical digestion. A) Small Intestine. B) Large Intestine. C) Stomach. D) None of above. Show Answer Correct Answer: C) Stomach. 4. The following statements give the functions of the lungs, except A) The lungs contract or relax during breathing. B) The lungs add oxygen to the blood. C) The lungs remove carbon dioxide from the body. D) The lungs control the respiratory system that helps make breathing possible. Show Answer Correct Answer: B) The lungs add oxygen to the blood. 5. What is tube that is also known as your wind pipe? A) Trachea. B) Esophagus. C) Bronchi. D) Alveoli. Show Answer Correct Answer: A) Trachea. 6. Largest artery in the body taking oxygenated blood to the body from the lower left chamber A) Aorta. B) Pulmonary arteries. C) Radial artery. D) Femoral artery. Show Answer Correct Answer: A) Aorta. 7. The function of ..... is to distribute nutrients and to clot blood. A) Blood plasma. B) Blood cells. C) Platelet. D) All three are correct. Show Answer Correct Answer: A) Blood plasma. 8. Which is a part of Circulatory System? A) Intestines. B) Heart. C) Skin. D) Brain. Show Answer Correct Answer: B) Heart. 9. What makes the circulatory system A) Heart, blood, and blood vessels. B) Blood, body, veins. C) Heart and blood only. D) Blood vessels. Show Answer Correct Answer: A) Heart, blood, and blood vessels. 10. What are two upper chambers of the heart that receive blood from the veins? A) Artery. B) Aorta. C) Atrium. D) None of the above. Show Answer Correct Answer: C) Atrium. 11. ..... from your body flows into your heart through the ..... A) Deoxygenated blood, aorta. B) Deoxygenated blood, vena cava. C) Deoxygenated blood, pulmonary artery. D) Deoxygenated blood, pulmonary vein. Show Answer Correct Answer: B) Deoxygenated blood, vena cava. 12. Which of the four is an environmental effect on the heart A) Rest. B) Eating. C) Exercise/Action. D) None of above. Show Answer Correct Answer: C) Exercise/Action. 13. Which is incorrect regarding the human circulatory system? A) Blood from the lungs carries oxygen to the heart muscle. It must pass through the tricuspid and semilunar valves in the heart. B) Blood pressure in the pulmonary artery is higher than in the pulmonary vein. C) Heart rate Can be measured by the heartbeat. D) If the coronary artery becomes narrow or stiff, it can cause the heart muscle to die. Show Answer Correct Answer: A) Blood from the lungs carries oxygen to the heart muscle. It must pass through the tricuspid and semilunar valves in the heart. 14. ONE-WAY VALVESONE-WAY VALVES A) CAPILLARY. B) HEART. C) BLOOD. D) VEIN. Show Answer Correct Answer: B) HEART. 15. What role does the circulatory system provide to the digestive system? A) It transports food particles to the muscles. B) It moves food through the intestines. C) It releases waste into the blood. D) It transports nutrients to cells. Show Answer Correct Answer: D) It transports nutrients to cells. 16. What type of circuit is used in your house? A) Light Circuits. B) The best circuits. C) Series Circuits. D) Parallel Circuits. Show Answer Correct Answer: D) Parallel Circuits. 17. More active organisms need a enclosed circualtory system because ..... A) They need to get CO2 in and O2 out quickly. B) Becuse of there LSA:VR. C) They have a large surface are to volume ratio. D) They need to get more oxygen in and carbon dioxide out. Show Answer Correct Answer: D) They need to get more oxygen in and carbon dioxide out. 18. Which artery carries DEOXYGENATED blood? A) Femoral. B) Brachial. C) Renal. D) Pulmonary. E) Carotid. Show Answer Correct Answer: D) Pulmonary. 19. Which blood vessel has a high carbon dioxide concentration, a low oxygen concentration and a high blood pressure? A) Pulmonary artery. B) Vena cava. C) Pulmonary vein. D) Aorta. Show Answer Correct Answer: A) Pulmonary artery. 20. Myocardium makes up 95% of the body A) True. B) False. Show Answer Correct Answer: A) True. 21. What Body System have we learned about in this chapter? A) Circulatory System. B) Digestive System. C) Respiratory System. D) Muscular System. Show Answer Correct Answer: A) Circulatory System. 22. Does rigorous (meaning hard) exercise make blood flow faster or slower through your body? A) It moves slower. B) It moves faster. Show Answer Correct Answer: B) It moves faster. 23. The cells of all living thing are made up of A) Cells. B) Protoplasm. C) Anatomy. D) Glands. Show Answer Correct Answer: B) Protoplasm. 24. The atria are the "upstairs" chambers of the heart and the valves are the "downstairs" chambers. A) False. B) True. Show Answer Correct Answer: A) False. 25. The pulmonary vein carries what type of blood A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: A) Oxygenated. 26. These type of blood vessels carry blood away from the heart. A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: A) Arteries. 27. High blood pressure increases the risk of heart disease, kidney disease, ..... and blindness A) Heart attack. B) Tuberculosis. C) Obesity. D) Diabetes. Show Answer Correct Answer: D) Diabetes. 28. The first stop of the blood in the heart is the ..... A) Left Ventricle. B) Right Atrium. C) Right Ventricle. D) Left Atrium. Show Answer Correct Answer: B) Right Atrium. 29. Organ where carbon dioxide and oxygen are exchanged * A) Heart. B) Lungs. C) Kidneys. D) None of above. Show Answer Correct Answer: B) Lungs. 30. The branch of the brachial artery that extends down the forearm and wrist on the thumb side is the: A) Ulnar artery. B) Celiac trunk. C) Carotid artery. D) Radial artery. Show Answer Correct Answer: D) Radial artery. 31. Which are buried deep within the body? A) Veins. B) Arteries. Show Answer Correct Answer: B) Arteries. 32. What is the colorless gas in air that animals need to breather? A) Carbon dioxide. B) Nutrients. C) Oxygen. D) None of above. Show Answer Correct Answer: C) Oxygen. 33. Which among the following does not articulate with the right atrium? A) Coronary Artery. B) Inferior Vena cava. C) Superior Vena Cava. D) Coronary Sinus. Show Answer Correct Answer: A) Coronary Artery. 34. Which of the following is NOT a formed element of blood? A) White blood cells. B) Plasma. C) Platelets. D) Red blood cells. Show Answer Correct Answer: B) Plasma. 35. Which chamber of the human heart has the thickest muscular wall? A) Left auricle. B) Right auricle. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: C) Left ventricle. 36. State the general relationship between exercise and heart rate in humans. A) If a person exercises, then their heart rate will not change. B) If a person exercises, then their heart rate will increase. C) If a person exercises, then their heart rate will decrease. D) Person exercising and heart rate are not related. Show Answer Correct Answer: B) If a person exercises, then their heart rate will increase. 37. Which main type of white blood cells produces antibodies? A) Lymphocytes. B) Phagocytes. Show Answer Correct Answer: A) Lymphocytes. 38. Which is NOT a main part of the brain? A) Cerebellum. B) Cerebrum. C) Medulla. D) Spinal Cord. Show Answer Correct Answer: D) Spinal Cord. 39. ..... are blood cells that help to fight infections and diseases A) Plasma. B) White blood cells. C) Red blood cells. D) Platelets. Show Answer Correct Answer: B) White blood cells. 40. *Your heart pumps about ..... gallons of blood every day. A) 1000. B) 2000. C) 3000. D) None of above. Show Answer Correct Answer: B) 2000. 41. What carries your oxygen? A) Plasma. B) Red blood cells. C) White blood cells. D) Platelets. Show Answer Correct Answer: B) Red blood cells. 42. Where does most digestion take place? A) Large intestine. B) Small intestine. C) Stomach. D) Liver. Show Answer Correct Answer: B) Small intestine. 43. ..... is present almost at centre in thoracic cage. A) Eyes. B) Heart. C) Kidney. D) Brain. Show Answer Correct Answer: B) Heart. 44. The heart and ..... are organs of the blood circulatory system. A) Blood vessels. B) Nerves. Show Answer Correct Answer: A) Blood vessels. 45. Exercise, fever, stimulants, excitement, fear are all things that will ..... the heart rate A) Decrease. B) Increase. Show Answer Correct Answer: B) Increase. 46. The lungs are a major organ in which body system? A) Skeletal. B) Respiratory. C) Circulatory. D) Outgrowths. Show Answer Correct Answer: B) Respiratory. 47. Which blood vessels generally carry blood away from the heart? A) Veins. B) Coronary arteries. C) Capillaries. D) Arteries. Show Answer Correct Answer: D) Arteries. 48. The heart is as big as your ..... A) Feet. B) Brain. C) Fist. D) Eyes. Show Answer Correct Answer: C) Fist. 49. Arteries have valves but veins do not have valves. A) False. B) True. Show Answer Correct Answer: B) True. 50. Which type of system would have a respiratory and circulatory system? A) Unicellular. B) Multicellular. Show Answer Correct Answer: B) Multicellular. 51. Which of these is a common problem of the circulatory system? A) Wait What?!. B) Mental Breakdowns. C) High Blood Pressure. D) Indigestion. Show Answer Correct Answer: C) High Blood Pressure. 52. Red bull and other stimulants can cause ..... which if not controlled could be lethal. A) Bradycardia. B) Tachycardia. C) Endocarditis. D) Arteriosclerosis. Show Answer Correct Answer: B) Tachycardia. 53. ..... are tiny blood vessels that connect arteries and veins. A) Systemic circulation. B) Pulmonary circulation. C) Coronary circulation. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 54. Fossils are formed in ..... rocks A) Igneous. B) Sedimentary. C) Metamorphic. D) None of above. Show Answer Correct Answer: B) Sedimentary. 55. White blood cells (WBC's), red blood cells (RBC's), plasma, & platelets are the 4 parts of what? A) Heart disease. B) Blood. C) Blood vessels. D) Organs. Show Answer Correct Answer: B) Blood. 56. Which of the following cells are circular in shape? A) Platelets. B) RBC. C) WBC. D) None of above. Show Answer Correct Answer: B) RBC. 57. The narrowing of the arteries due to plaque buildup is called A) Thrombosis. B) Atherosclerosis. C) Arthritis. D) Embolism. Show Answer Correct Answer: B) Atherosclerosis. 58. Who was the first person to understand how blood circulates through our body? A) Karl Landsteiner. B) George McCarver. C) Ulysses S. Grant. D) William Harvey. Show Answer Correct Answer: D) William Harvey. 59. Which of the following is NOT an organ of the circulatory system? A) Small Intestine. B) Heart. C) Arteries. D) Capillaries. Show Answer Correct Answer: A) Small Intestine. 60. The phase of the cardiac cycle in which the heart contracts and pumps blood is called A) Diastole. B) Systole. C) Blood pressure. D) None of above. Show Answer Correct Answer: B) Systole. ← 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