This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Letter D is known as the A) Right Atrium. B) Left Ventricle. C) Left Atrium. D) Right Ventricle. Show Answer Correct Answer: A) Right Atrium. 2. Who discovered the ABO and Rh blood groups? A) Oliver. B) Decastello. C) Landsteiner. D) Balthazard. Show Answer Correct Answer: C) Landsteiner. 3. The septum prevents the ..... A) Backflow of blood from the aorta to the left ventricle. B) Mixing of oxygen-rich blood with carbon dioxide-rich blood. C) Backflow of blood from the right ventricle to the right atrium. D) Backflow of blood from the left ventricle to the left atrium. Show Answer Correct Answer: B) Mixing of oxygen-rich blood with carbon dioxide-rich blood. 4. The heart is a muscle. A) False. B) True. Show Answer Correct Answer: B) True. 5. ..... is a chronic disease needing lifelong managementoccurs when the heart muscle doesn't pump blood as well as it should. When this happens, blood often backs up and fluid can build up in the lungs, causing shortness of breath. A) Angina Pectoris. B) Stroke. C) Myocardial Infarction. D) Heart Failure. E) High Cholesterol. Show Answer Correct Answer: D) Heart Failure. 6. The lower two chambers of the heart A) Atria. B) Ventricles. C) Valves. D) Septum. Show Answer Correct Answer: B) Ventricles. 7. Also known as high blood pressure. it can be measured using an instrument called sphygmomanometer A) Anemia. B) Varicose veins. C) Arteriosclerosis. D) Hypertension. Show Answer Correct Answer: D) Hypertension. 8. If the arteries are narrow and hard, the blood prrssure is likely to be ..... than normal A) Lower. B) Higher. Show Answer Correct Answer: B) Higher. 9. How thick are capillaries? A) A few blood cells thick. B) Thicker than venules but thinner than veins. C) One blood cell thick. D) Thicker than arterioles but thinner than arteries. Show Answer Correct Answer: C) One blood cell thick. 10. The main organ of the Circulatory System A) Stomach. B) Lungs. C) What's the Circulatory System?. D) Heart. Show Answer Correct Answer: D) Heart. 11. Anterior end of heart is ..... while posterior end ..... A) Narrow. Narrow. B) Narrow. Broad. C) Broad. Broad. D) Broad. Narrow. Show Answer Correct Answer: D) Broad. Narrow. 12. In normal people, how many times per minute does the heart beat on average? A) 60 times. B) 75 times. C) 85 times. D) 90 times. Show Answer Correct Answer: B) 75 times. 13. I am the 'liquid' portion of blood. A) Plasma. B) Erythrocytes. C) Thrombocytes. D) Leukocytes. Show Answer Correct Answer: A) Plasma. 14. Iron Deficiency Anemia A) Lymphatic system. B) Cardiovascular system. Show Answer Correct Answer: B) Cardiovascular system. 15. When someone is exercising, which is most likely a function of both the circulatory and respiratory systems A) To help the body sweat. B) To provide oxygen to the body. C) To make the muscles work. D) To protect bones from breaking. Show Answer Correct Answer: B) To provide oxygen to the body. 16. When blood leaves the left atrium, where does it go next? A) Left ventricle. B) Aorta. C) Right atrium. D) Pulmonary artery. Show Answer Correct Answer: A) Left ventricle. 17. Order the phases an action potential travels in the conduction system A) AV bundle branches$\rightarrow$ AV node$\rightarrow$ SA node$\rightarrow$ Purkinje fibers. B) Purkinje fibers$\rightarrow$ SA node$\rightarrow$ AV node$\rightarrow$ AV bundle branches. C) SA node$\rightarrow$ AV node$\rightarrow$ AV bundle branches$\rightarrow$ Purkinje fibers. D) SA node$\rightarrow$ AV bundle branches$\rightarrow$ AV node$\rightarrow$ Purkinje fibers. Show Answer Correct Answer: C) SA node$\rightarrow$ AV node$\rightarrow$ AV bundle branches$\rightarrow$ Purkinje fibers. 18. .... carry the blood away from the heart and the 2 ..... return the blood back to the heart. A) 1. Arteries 2. Veins. B) 1. Veins 2. Arteries. Show Answer Correct Answer: A) 1. Arteries 2. Veins. 19. What vocabulary word means the body system that consists of the heart, blood vessels, and blood; also known as the circulatory system? A) Respiratory system. B) Cardiovascular system. C) Digestive system. D) Lymphatic system. Show Answer Correct Answer: B) Cardiovascular system. 20. Which blood group is able to donate whole blood to all other blood types? A) B. B) O. C) A. D) AB. Show Answer Correct Answer: B) O. 21. Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells? A) Circulatory. B) Digestive. C) Nervous. D) Endocrine. Show Answer Correct Answer: A) Circulatory. 22. What does the trachea do? A) Carries food to the stomach. B) Carries air to the lungs. C) Carries air to your heart. D) None of above. Show Answer Correct Answer: B) Carries air to the lungs. 23. What is the normal resting BPM for humans? A) 20-60 BPM. B) 60-100 BPM. C) 90-150 BPM. D) All of the above. Show Answer Correct Answer: B) 60-100 BPM. 24. How many chambers are in the human body? A) 4. B) 2. C) 9. D) 10. Show Answer Correct Answer: A) 4. 25. When does digestion begin? A) When the enzymes change starches into sugar. B) When you begin chewing the food in your mouth. C) After you swallow. D) When you feel full. Show Answer Correct Answer: B) When you begin chewing the food in your mouth. 26. The blood vessels, heart, and blood A) Capillaries. B) Arteries. C) Vessels. D) Circulatory system. Show Answer Correct Answer: D) Circulatory system. 27. Antibodies trigger a response from the immune system in the form of antigens. A) True. B) False. Show Answer Correct Answer: A) True. 28. True or false:The aorta is the body's largest artery. A) True. B) False. Show Answer Correct Answer: A) True. 29. If a person's blood lacked platelets, what process could not take place? A) Carrying glucose to cells. B) Clotting of blood. C) Transfusing of blood. D) Carrying oxygen to cells. Show Answer Correct Answer: B) Clotting of blood. 30. With circulation, the heart provides thehuman body with ..... A) Oxygen. B) Nutrients. C) A way to get rid with waste. D) All of the above. Show Answer Correct Answer: D) All of the above. 31. Heart pumps the blood throughout the body. A) TRUE. B) FALSE. Show Answer Correct Answer: A) TRUE. 32. Membranous sac that encloses the heart A) Pericardium. B) Ventricle. C) Atrium. D) Septum. Show Answer Correct Answer: A) Pericardium. 33. Which of the following tests for starch? A) Emulsion. B) Iodine. C) Benedict's. D) Biuret. Show Answer Correct Answer: B) Iodine. 34. Semi-permeable barrier between blood and interstitial fluid. A) Endothelium. B) Subendothelium. C) Blood vessels. D) Tunica Adventitia. Show Answer Correct Answer: A) Endothelium. 35. A chamber of the heart that receives blood from the veins and forces it by muscular contraction into a ventricle is an ..... A) Atrium. B) Valve. C) Ventricle. D) None of above. Show Answer Correct Answer: A) Atrium. 36. True or False:If your temperature lowers, blood vessels in the skin dilate, which allows more blood to flow near the surface of the skin. A) True. B) False. Show Answer Correct Answer: B) False. 37. Pressure in the brachial artery when the left ventricle contracts A) Diastolic Blood Pressure. B) Systolic Blood Pressure. Show Answer Correct Answer: B) Systolic Blood Pressure. 38. What are the lower chambers of the heart called? A) Atrium. B) Ventricles. Show Answer Correct Answer: B) Ventricles. 39. Blood from the inferior and superior vena cava enters the heart into the A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: B) Right atrium. 40. TRUE or FALSEThe septum separates the two sides of the heart. A) FALSE . B) TRUE. Show Answer Correct Answer: B) TRUE. 41. They connect small knobs of tissues called lymph nodes A) Capillaries. B) Veins. C) Lymph Vessels. D) Arteries. Show Answer Correct Answer: C) Lymph Vessels. 42. T / F-Blood pressure is reduced as it enters the capillary beds and is at its highest in the veins. A) True. B) False. Show Answer Correct Answer: B) False. 43. What condition indicates a death of heart tissue? A) Hypertension. B) Stroke. C) Atherosclerosis. D) Heart Attack. Show Answer Correct Answer: D) Heart Attack. 44. Universal recipient blood type A) A+. B) O+. C) AB+. D) B+. Show Answer Correct Answer: C) AB+. 45. How much blood does the average adult have in their body? A) 3 cups. B) 5-6 liters. C) 2-3 liters. D) 0.5 liters. Show Answer Correct Answer: B) 5-6 liters. 46. Which part of the blood helps it to clot? A) White Blood Cells. B) Platelets. C) Red Blood Cells. D) Plasma. Show Answer Correct Answer: B) Platelets. 47. The process in which oxygen and glucose undergo chemical reactions in cells to create energy is called A) Respiration. B) Oxidation. C) Perspiration. D) Photosynthesis. Show Answer Correct Answer: A) Respiration. 48. Arteries and veins are joined by a network of ..... A) Valves. B) Capillaries. C) Tubes. D) None of above. Show Answer Correct Answer: B) Capillaries. 49. What are varicose veins? A) A regularly recurrent wave of distension in arteries that results from the progress through an artery. B) A bodily structure that closes temporarily a passage or orifice or permits movement of fluid in one direction only. C) Are big, twisty veins near the skin's surface that are caused by weakened valves. D) Any of the minute veins connecting the capillaries with the larger systemic veins. Show Answer Correct Answer: C) Are big, twisty veins near the skin's surface that are caused by weakened valves. 50. You can keep your heart strong by: A) Doing activities, like playing outside, riding your bike, and swimming. B) Eating healthy. C) All of the above. D) None of above. Show Answer Correct Answer: C) All of the above. 51. This function of the skin allows the body to retain or lose heat. A) Absorption. B) Body temperature regulation. C) Storage. D) Excretion. Show Answer Correct Answer: B) Body temperature regulation. 52. Which substance is transported by hemoglobin? A) Nitrogen. B) Water. C) Oxygen. D) Urea. Show Answer Correct Answer: C) Oxygen. 53. If somebody had type AB blood, then they could receive blood from a donor with ..... blood. A) AB. B) A. C) B. D) O. E) All of the above. Show Answer Correct Answer: E) All of the above. 54. True or false:The Pulmonary Vein carries oxygen-poor blood to the lungs to get oxygen. A) True. B) False. Show Answer Correct Answer: B) False. 55. The organ where food is mashed and then broken down by acids? A) Esophagus. B) Small intestine. C) Stomach. D) Mouth. Show Answer Correct Answer: C) Stomach. 56. The dividing wall between the right and left side of the heart. A) Septum. B) Heart muscle. C) Valve. D) Blood. Show Answer Correct Answer: A) Septum. 57. Superior vena cava-right atrium-Tricuspid valve-right ventricle-Pulmonary valve-pulmonary artery-lungs-Pulmonary veins-left atrium-mitral valve-?-aorta-rest of body A) LEFT VENTRICLE. B) LEFT ATRIUM. C) RIGHT ATRIUM. D) RIGHT VENTRICLE. Show Answer Correct Answer: A) LEFT VENTRICLE. 58. Gaseous exchange happens because of ..... A) Osmosis. B) Semi-permeable membranes. C) Respiration. D) Diffusion. Show Answer Correct Answer: D) Diffusion. 59. The ..... node is the pacemaker of the heart that is located at the top of the right atrium and establishes the heart rate. A) Bundle branches. B) Bundle of His. C) Purkinje fibers. D) Sinoatrial (SA). E) Atrioventricular (AV). Show Answer Correct Answer: D) Sinoatrial (SA). 60. Which of the following is carried by the heart to the all organs of the body through arteries, capillaries and arterioles? A) Cytoplasm. B) Blood. C) Fluid. D) Bone marrow. Show Answer Correct Answer: B) Blood. Next →Related QuizzesScience QuizzesGeneral Knowledge QuizzesCirculatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books