This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 15 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... It is innermost layer of heart A) Endocardium. B) Myocardium. C) Aorta. D) Pericardium. Show Answer Correct Answer: A) Endocardium. 2. ..... are responsable for blood clotting. A) Erythrocytes. B) Monocytes. C) Platelets. D) None of above. Show Answer Correct Answer: C) Platelets. 3. The name of the hearts chamber that pumps blood into the aorta is called the ..... A) Left Ventricle. B) Left Atrium. C) Right Ventricle. D) Ventricle. Show Answer Correct Answer: A) Left Ventricle. 4. The heart, trachea, esophagus, and lymph nodes are all found in the A) Pericardial sac. B) Myocardium. C) Pericardium. D) Mediastinum. Show Answer Correct Answer: D) Mediastinum. 5. It contains valves A) Lymphatic vessels. B) Lymphatic ducts. C) Lymphatic capillaries. D) None of above. Show Answer Correct Answer: A) Lymphatic vessels. 6. The muscles contracting is important for returning the blood back to the heart against gravity in which vessels. A) Arteries. B) Veins. C) Blood. D) Capillaries. Show Answer Correct Answer: B) Veins. 7. The smallest blood vessels that ensure oxygen and nutrients are delivered to the body's cells. A) Capillaries. B) Arteries. C) Veins. D) None of above. Show Answer Correct Answer: A) Capillaries. 8. Blood carries oxygen and nutrients to the cells of the body. A) False. B) True. Show Answer Correct Answer: B) True. 9. What color is blood without oxygen? A) Blue. B) Bright red. C) Dark red. D) None of above. Show Answer Correct Answer: C) Dark red. 10. ..... system gives shape and support to the body; protects the soft organs inside A) Circulatory. B) Muscular. C) Nervous. D) Skeletal. Show Answer Correct Answer: D) Skeletal. 11. Which of these is NOT a function of the circulatory system? A) Deliver oxygen. B) Transport waste. C) Help digest food. D) Defend against disease. Show Answer Correct Answer: C) Help digest food. 12. Which blood type can donate to all other blood types? A) AB. B) B. C) O. D) A. Show Answer Correct Answer: C) O. 13. If your blood is type B, what antibodies would your body produce? A) Type O. B) Type A. C) Type AB. D) Type B. Show Answer Correct Answer: B) Type A. 14. ..... is a cell fragment that is involved in blood clotting is A) Capillary. B) Platelet. C) Vein. D) Artery. Show Answer Correct Answer: B) Platelet. 15. What type of blood those the veins carry? A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: B) Deoxygenated. 16. Which part of blood protects your body from infections and illnesses? A) White blood cells. B) Platelets. C) Red blood cells. D) Plasma. Show Answer Correct Answer: A) White blood cells. 17. ..... recive the blood from from lungs A) Left atrium. B) Right ventricles. C) Right atrium. D) Left ventricles. Show Answer Correct Answer: A) Left atrium. 18. What does the pulmonary valve do? A) Guides blood from lungs to heart. B) Guides blood from lungs to brain. C) Guides blood from veins to heart. D) Guides blood from heart to lungs. Show Answer Correct Answer: D) Guides blood from heart to lungs. 19. The heat is a ..... A) Bone. B) Muscle. Show Answer Correct Answer: B) Muscle. 20. Which blood cell is directly involved in the clotting process? A) Platelets. B) Plasma. C) Red blood cell. D) None of above. Show Answer Correct Answer: A) Platelets. 21. Where do you find deoxygenated blood? A) Right leg and right foot. B) Right atrium and right ventricle. C) Left atrium and left ventricle. D) Left atrium and right ventricle. Show Answer Correct Answer: B) Right atrium and right ventricle. 22. We get our nutrients through digestive system. A) True. B) False. Show Answer Correct Answer: A) True. 23. What is the tiniest organism called? A) Multi-celled organism. B) Single celled organism. C) Tissue. D) System. Show Answer Correct Answer: B) Single celled organism. 24. True or False? Cells are VERY small A) False. B) True. Show Answer Correct Answer: B) True. 25. What is a balanced diet A) A diet Which contains all nutrients in Required amount. B) Any Food we eat. C) To lose balance after eating food. D) None of above. Show Answer Correct Answer: A) A diet Which contains all nutrients in Required amount. 26. Deoxygenated blood flows from body parts to ..... of the heart. A) Right atrium. B) Left atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: A) Right atrium. 27. Hypertension is a disorder in which A) Blood pressure is consistently lower than normal. B) Blood pressure is consistentley higher than normal. C) Fatty deposits build up on artery walls. D) Some of the heart muscle dies. Show Answer Correct Answer: B) Blood pressure is consistentley higher than normal. 28. Once the blood circulates through the upper part of the body, it then goes to the ..... part of the body. A) Lower. B) Upper. Show Answer Correct Answer: A) Lower. 29. The period right after strenuous activity or exercise when your heart rate is slowing back to normal is sometimes called the ..... period. A) Warm up. B) Recovery. Show Answer Correct Answer: B) Recovery. 30. Structure(s) in heart that keep the blood flowing in one direction. A) Bronchiole(s). B) Chamber(s). C) Seven(s). D) Valve(s). Show Answer Correct Answer: D) Valve(s). 31. Minute tubes that branches out from the left and right bronchus. A) Alveoli. B) Bronchioles. C) Bronchi. D) Capillaries. Show Answer Correct Answer: B) Bronchioles. 32. What is the minimum interval permitted between blood donations? A) 65 days. B) 54 days. C) 45 days. D) 56 days. Show Answer Correct Answer: D) 56 days. 33. When blood flows into the right atrium from the body, it contains A) Little oxygen and a lot of carbon dioxide. B) A lot of oxygen and little carbon dioxide. C) A lot of both oxygen and carbon dioxide. D) Little of either oxygen or carbon dioxide. Show Answer Correct Answer: A) Little oxygen and a lot of carbon dioxide. 34. Each of the four iron atoms in one molecule of hemoglobin can combine loosely with A) One atom oxygen. B) Four molecules of oxygen. C) One molecule of oxygen. D) Two molecule of oxygen. Show Answer Correct Answer: B) Four molecules of oxygen. 35. The SA node(pacemaker) Is locted in the A) Right atrium. B) Right Ventricle. C) Between the atria & ventricles. D) Left atrium. Show Answer Correct Answer: A) Right atrium. 36. Deformed, crescent-shaped RBC's rupture easily causing blockages in small vessels and pain; reduced oxygen content in blood A) Polycythemia. B) Leukocytosis. C) Sickle cell anemia. D) Leveling. Show Answer Correct Answer: C) Sickle cell anemia. 37. The blood vessels that transport oxygenated blood to and from the heart muscles itself is called the A) Inferior vena cava. B) Aorta. C) Coronary arteries. D) Superior vena cava. Show Answer Correct Answer: C) Coronary arteries. 38. What is the term used for many cells working together? A) Tissue. B) Organ. C) Plasma. D) Nutrients. Show Answer Correct Answer: A) Tissue. 39. Which of the following is correct of microcirculation? A) Blood travels from veins into capillaries into venules. B) Blood travels from arteries into capillaries into arterioles. C) Blood travels through venules, then capillaries, then veins. D) Blood travels through arterioles, then capillaries, then venules. Show Answer Correct Answer: D) Blood travels through arterioles, then capillaries, then venules. 40. Arrange the following types of blood vessels in the correct order, when blood flows to the body from the heart and back to the heart again. A. other veins; B. venules; C. capillaries; D. arterioles; E. other arteries. F. vena cava; G. aorta A) C E-D-C-F-A-B-G. B) D G-D-C-F-A-B-E. C) G-E-D-C-B-A-F. D) F-A-B-C-D-G-E. Show Answer Correct Answer: C) G-E-D-C-B-A-F. 41. What part of blood is the liquid part made primary of water? A) Platelets. B) Red Blood Cells. C) Plasma. D) White Blood Cells. Show Answer Correct Answer: C) Plasma. 42. Which is not a proper care for circulatory system A) Exercise. B) Proper diet. C) Have time to relax and be free from stress. D) Sleep only for 2 hours. Show Answer Correct Answer: D) Sleep only for 2 hours. 43. Which of these is absent in lymph? A) RBCs. B) Lymphocytes. C) Platelets. D) RBCs and Platelets. Show Answer Correct Answer: D) RBCs and Platelets. 44. (circulatory system) The medical technician who draws blood from a vein for laboratory tests is called a A) Hematologist. B) Phlebotomist. C) Serologist. D) None of above. Show Answer Correct Answer: B) Phlebotomist. 45. ..... is the liquid part of blood and is made mostly of water. A) Ventricles. B) Atriums. C) Platelets. D) Plasma. Show Answer Correct Answer: D) Plasma. 46. What color is plasma in the blood A) Red. B) White. C) Blue. D) Straw-colored. Show Answer Correct Answer: D) Straw-colored. 47. Lower two chambers of heart are called ..... A) Ears. B) Ventricles. Show Answer Correct Answer: B) Ventricles. 48. What is the function of phagocytes? A) Blood clotting. B) Transport dissolved materials. C) Produce antibodies. D) Engulf and ingest agglutinated foreign particles. Show Answer Correct Answer: D) Engulf and ingest agglutinated foreign particles. 49. What is the function of arteries in the circulatory system? A) CARRY OXYGEN RICH BLOOD TO THE HEART. B) CARRY BLOOD WITH NO OXYGEN AWAY FROM THE HEART. C) CARRY OXYGEN RICH BLOOD AWAY FROM THE HEART. D) TO CARRY DEOXYGENATED BLOOD TO THE HEART. Show Answer Correct Answer: C) CARRY OXYGEN RICH BLOOD AWAY FROM THE HEART. 50. The main function of the circulatory system is A) To give the body structure and support. B) Excrete hormones. C) Transport blood, nutrients, and gases throughout the body. D) To transport messages from the body to the brain. Show Answer Correct Answer: C) Transport blood, nutrients, and gases throughout the body. 51. They are the receiving chambers of blood from the veins. A) Atria. B) Ventricles. Show Answer Correct Answer: A) Atria. 52. Which one is the largest artery? A) Pulmonary artery. B) Aorta. C) Renal artery. D) Hepatic artery. Show Answer Correct Answer: B) Aorta. 53. When blood is deoxygenated, the first chamber of the heart it enters is the A) Left atrium. B) Right ventricle. C) Right atrium. D) Left ventricle. Show Answer Correct Answer: C) Right atrium. 54. Which major artery carries oxygenated blood throughout the body? A) Aorta. B) Pulmonary artery. C) Coronary artery. D) Inferior vena cava. Show Answer Correct Answer: A) Aorta. 55. What is a flap of tissue that prevents blood from flowing backward? A) Septum. B) Valve. C) Esophagus. D) Epiglottis. Show Answer Correct Answer: B) Valve. 56. The 3 main functions of the Circulatory System A) Break down food, remove waste, make blood cells. B) React to stimuli, grow, adapt. C) Deliver materials, remove waste, and fight infection. D) None of above. Show Answer Correct Answer: C) Deliver materials, remove waste, and fight infection. 57. What is the role of platelets in the blood? A) Transporting oxygen. B) Fighting infections. C) Helping with blood clotting. D) Carrying nutrients and waste. Show Answer Correct Answer: C) Helping with blood clotting. 58. Protein in red blood cells that binds to oxygen A) Hemoglobin. B) Hypertension. C) Atrium. D) Lymph. Show Answer Correct Answer: A) Hemoglobin. 59. The pulmonary vein carries blood from the ..... to the ..... atrium. A) Heart/right. B) Lungs/right. C) Heart/left. D) Lungs/left. Show Answer Correct Answer: D) Lungs/left. 60. Blood from right ventricle goes to ..... A) Left atrium. B) Right atrium. C) Lung. D) Left ventricle. Show Answer Correct Answer: C) Lung. ← 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