This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System โ Quiz 55 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 55 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which does not have lungs? A) Reptile. B) Fish. C) Bird. D) Mammal. Show Answer Correct Answer: B) Fish. 2. The respiratory system takes in oxygen and gives out ..... A) Carbon dioxide. B) More oxygen. C) Air and nutrients. D) None of above. Show Answer Correct Answer: A) Carbon dioxide. 3. Blood vessel that supplies the heart muscle A) Femoral. B) Carotid. C) Aorta. D) Coronary. Show Answer Correct Answer: D) Coronary. 4. Liquid part of blood that supports the other parts A) Platelets. B) White blood cells. C) Red blood cells. D) Plasma. Show Answer Correct Answer: D) Plasma. 5. Where in the cell does aerobic respiration take place? A) Nucleus. B) Mitochondria. C) Cell membrane. D) Cytoplasm. Show Answer Correct Answer: B) Mitochondria. 6. The heart is enclosed by a single membrane called pericardium A) True. B) False. Show Answer Correct Answer: B) False. 7. Blood moves to the heart and goes to both lungs to drop off carbon dioxide and pick up ..... A) White blood cells. B) Oxygen. Show Answer Correct Answer: B) Oxygen. 8. During gas exchange Oxygen leaves the capillaries, enters the alveolus, then the bronchioles and is eventually breathed out. A) False. B) True. Show Answer Correct Answer: A) False. 9. The blood transports ..... and remove ..... A) Waste products-hormones. B) Hormones-ills. C) Waste product-ills. D) Hormones-waste products. Show Answer Correct Answer: D) Hormones-waste products. 10. What is the main function of the circulatory system in the human body? A) Transport nutrients and oxygen to cells. B) Remove waste products from the body. C) Regulate body temperature. D) All of the above. Show Answer Correct Answer: D) All of the above. 11. Which of the following does NOT belong in the cirulatory group? A) Veins. B) Arteries. C) Capillaries. D) Lungs. Show Answer Correct Answer: D) Lungs. 12. What divides the heart into right and left halves? A) Valves. B) Atrium. C) Plasma. D) Septum. Show Answer Correct Answer: D) Septum. 13. Membrane surrounding the heart A) Myocardium. B) Endocardium. C) Epicardium. D) Pericardium. Show Answer Correct Answer: D) Pericardium. 14. The red color of blood is the result of hemoglobin carrying oxygen. A) True. B) False. Show Answer Correct Answer: A) True. 15. What is the muscle called that contracts and relaxes during breathing? A) Stomach. B) Heart. C) Lung. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 16. Which side of the heart always receives deoxygenated blood? A) Right. B) Top. C) Left. D) Anywhere. E) Bottom. Show Answer Correct Answer: A) Right. 17. In 120/80 denotes..... 120 in 120/80 denotes..... A) Normal blood pressure is normal blood pressure. B) Systolic pressure Systolic pressure. C) Diastolic pressure Diastolic pressure. D) Blood pressure. Show Answer Correct Answer: B) Systolic pressure Systolic pressure. 18. Thrombin is an enzyme that converts fibrin to fibrinogen A) False. B) True. Show Answer Correct Answer: A) False. 19. What are the 4 main chambers of the heart? A) Right atrium, left atrium, aorta, pulmonary artery. B) Left atrium, aorta, pulmonary artery, pulmonary vein. C) Right atrium, left atrium, right ventricle, aorta. D) Right atrium, left atrium, right ventricle, left ventricle. Show Answer Correct Answer: D) Right atrium, left atrium, right ventricle, left ventricle. 20. ..... is the force of blood on the walls of the blood vessels. A) Blood Pressure. B) Hypertension. C) Heart rate. D) Pulse. Show Answer Correct Answer: A) Blood Pressure. 21. The exchange of oxygen, nutrients, and carbon dioxide, and other body wastes happen in the ..... A) Capillaries. B) Arteries. C) Veins. D) Valve. Show Answer Correct Answer: A) Capillaries. 22. Located in the walls of the right atrium A) AV node. B) Action potentials. C) Atrioventricular Bundle. D) Aorta. E) Aorta. Show Answer Correct Answer: A) AV node. 23. Our blood brings ..... to all of our body cells. A) Nutrients. B) Oxygen. C) White Blood Cells. D) Waste. Show Answer Correct Answer: B) Oxygen. 24. Incompatibility of blood group causes A) Clotting of blood. B) Bleeding. C) Clogging of blood vessels. D) None of these. Show Answer Correct Answer: C) Clogging of blood vessels. 25. The RIGHT side of the heart pumps blood to which organ? A) Lungs. B) The Whole Body. C) Kidneys. D) Brain. Show Answer Correct Answer: A) Lungs. 26. When the diaphragm contracts and moves down, the lungs are ..... A) Expanding with air. B) Shrinking-pushing air out. Show Answer Correct Answer: A) Expanding with air. 27. Capillary means ..... 'capillary เฐ เฐจเฐเฐพ A) Hair. B) Tubule Tongue. C) Slide plate. D) None is none. Show Answer Correct Answer: A) Hair. 28. Heart beat rate in newborn baby..... A) 100-150. B) 60-70. C) 40-60. D) 80-120. Show Answer Correct Answer: A) 100-150. 29. The inner layer of the heart: A) Myocardium. B) Endocardium. C) Pericardium. D) Epicardium. Show Answer Correct Answer: B) Endocardium. 30. A profuse escape of blood from the vessels- A) Thrombosis. B) Hepatic arteries. C) Vasodilation. D) Hemorrhage. Show Answer Correct Answer: D) Hemorrhage. 31. How does blood carry waste products away from cells? A) Through the circulatory system. B) Through the respiratory system. C) Through the nervous system. D) Through the digestive system. Show Answer Correct Answer: A) Through the circulatory system. 32. The main organs of the circulatory system are protected by: A) Spine. B) Jaw. C) Skull. D) Ribcage. Show Answer Correct Answer: D) Ribcage. 33. What is the purpose of the circulatory system in the body? A) Deliver nutrients and oxygen to the cells. B) Remove waste from the cells. C) Regulate body temperature. D) All of these. Show Answer Correct Answer: D) All of these. 34. This component of the blood transports oxygen to all the organs in the body. A) Plasma. B) RBC. C) Platelets. D) WBC. Show Answer Correct Answer: B) RBC. 35. After cellular respiration, how does the body get rid of CO2? A) Transported to digestive system to become feces. B) Transported to kidneys as waste. C) Transported to lungs for exhale. D) Transported to skin to be lost as heat. Show Answer Correct Answer: C) Transported to lungs for exhale. 36. Blood is made up of ..... % blood cells. A) 55. B) 45. Show Answer Correct Answer: B) 45. 37. The main vein(s) that brings blood to the right atrium? A) Aorta. B) Pulmonary veins. C) Superior and Inferior vena cava. D) Jugular vein. Show Answer Correct Answer: C) Superior and Inferior vena cava. 38. An increase in blood vessel diameter causes arterial blood pressure to decrease. A) True. B) False. Show Answer Correct Answer: A) True. 39. Blood is part of which one of these systems A) Circulatory. B) Skeletal. C) Digestive. D) Repsiratory. Show Answer Correct Answer: A) Circulatory. 40. Which shows the correct order of events when a person focuses on a far object?1. Cilliary msucles relax2. Suspensory ligaments become taut3. Edge of lens pilled for it to be less convex A) 2 $\rightarrow$ 3 $\rightarrow$ 1. B) 1 $\rightarrow$ 2 $\rightarrow$ 3. C) 3 $\rightarrow$ 2 $\rightarrow$ 1. D) 2 $\rightarrow$ 1 $\rightarrow$ 3. Show Answer Correct Answer: B) 1 $\rightarrow$ 2 $\rightarrow$ 3. 41. Only has 1 valve A) Venous Vessels (Back) [6]. B) Arteries (pulses) [6]. Show Answer Correct Answer: B) Arteries (pulses) [6]. 42. Blood also absorbs the ..... from different parts of the body and takes it to the excretory system. A) Temperature of the body. B) Waste materials. C) Protect the body. D) Nutrients. Show Answer Correct Answer: B) Waste materials. 43. When we exhale, the air ..... A) Goes inside the bones. B) Goes out. Show Answer Correct Answer: B) Goes out. 44. Which Ventricle produces a stronger contraction? A) Left. B) Right. Show Answer Correct Answer: A) Left. 45. ..... is nonliving and performs many of the pick up/delivery jobs of blood. A) Plasma. B) Vessel. C) Bone Marrow. D) None of above. Show Answer Correct Answer: A) Plasma. 46. Valves in veins serve to: A) Release excessive pressure to protect these thin-walled vessels. B) Counteract the crushing force of surrounding skeletal muscles. C) Prevent backflow of blood in the absence of high blood pressure. D) Adjust blood pressure by compartmentalizing the venae cavae. Show Answer Correct Answer: C) Prevent backflow of blood in the absence of high blood pressure. 47. These are the smallest blood vessels. They deliver blood to the cells. A) Arteries. B) Valves. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 48. TRUE or FALSEPulmonary circulation is the process of moving blood between heart and lungs. A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 49. What is the medical term for watery fluid inside the lympathic vessels? A) Plasma. B) Lymph. C) Blood. D) None of above. Show Answer Correct Answer: B) Lymph. 50. Doctors use which instrument to listen the heartbeat- A) Stethoscope. B) Sphygmomanometer. C) Suction Device. D) Thermometer. Show Answer Correct Answer: A) Stethoscope. 51. Bicuspid valve and tricuspid valves are closed during A) Ventricular diastole. B) Ventricular systole. C) Late joint diastole. D) Atrial systole. Show Answer Correct Answer: B) Ventricular systole. 52. Which answer best describes how infectious diseases get transmitted (passed on)? A) People can sneeze or cough and pass disease on through the air. B) Drinking water can be contaminated with diseases. C) Objects such as doorknobs and towels can be contaminated by disease. D) All of the above answers are ways that diseases are transmitted. Show Answer Correct Answer: D) All of the above answers are ways that diseases are transmitted. 53. Which of the following are the valves that can be found inside the heart? A) Tricuspid, Pulmonary, Bicuspid, Respiratory. B) Butterfly, Bicuspid, Pulmonary, Aortic. C) Tricuspid, Pulmonary, Bicuspid, Aortic. D) None of above. Show Answer Correct Answer: C) Tricuspid, Pulmonary, Bicuspid, Aortic. 54. Which of these heart structures prevents blood from flowing backward? A) Valves. B) Aorta. C) Coronary artery. D) Septum. Show Answer Correct Answer: A) Valves. 55. Where does blood vessels carry the blood to A) Towards the body. B) Away from heart. C) Away from the body. D) Towards the heart. Show Answer Correct Answer: D) Towards the heart. 56. What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells? A) White blood cells. B) Platelets. C) Plasma. D) Red blood cells. Show Answer Correct Answer: C) Plasma. 57. What is a major organ used in the circulatory system? A) Liver. B) Lungs. C) Kidneys. D) Heart. Show Answer Correct Answer: D) Heart. 58. What is the circulatory system's main job? A) Breathe. B) Circulate oxygen to the body and remove waste. C) Filter out toxins. D) Control body movements. Show Answer Correct Answer: B) Circulate oxygen to the body and remove waste. 59. Muscle of the heart A) Inferior vena cava. B) Myocardium. C) Epicardium. D) Endocardium. Show Answer Correct Answer: B) Myocardium. 60. Blood vessels that move TOWARD the heart A) Ventricles. B) Veins. C) Arteries. D) Plasma. Show Answer Correct Answer: B) Veins. โ PreviousNext โRelated 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 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books