This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 186 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 186 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which best explains how a single-celled organism can survive without other cells? A) They do not need any substance from outside of the cell. B) They are able to perform all necessary functions within one cell. C) They do not need to perform more than one function to survive. D) They can't survive without other cells. Show Answer Correct Answer: B) They are able to perform all necessary functions within one cell. 2. What type of blood cell forms a clot when a person has a cut or a bruise? A) Red Blood Cell. B) White Blood Cell. C) Platelets. D) Neurons. Show Answer Correct Answer: C) Platelets. 3. The heart's contraction movement is called A) Inhalation. B) Diastole. C) Exhalation. D) Systole. Show Answer Correct Answer: D) Systole. 4. The contraction of heart chambers is known as A) Pulse. B) Diastole. C) Systole. D) None of above. Show Answer Correct Answer: C) Systole. 5. The left ventricle works harder than the right ventricle because it pumps blood where? A) The rest of your body. B) Out of your body. C) Around your heart. D) To the lungs. Show Answer Correct Answer: A) The rest of your body. 6. Blood is mainly made up of pale yellow liquid called A) Plasma. B) Platelets. Show Answer Correct Answer: A) Plasma. 7. Breathing requires pressure change. A) True. B) False. Show Answer Correct Answer: A) True. 8. Leaves blood and becomes a macrophage which eats bacteria, dead cells, cell fragments and other debris A) Plasma. B) Monocyte. C) Water. D) Water. E) Thrombocyte (platelets). Show Answer Correct Answer: B) Monocyte. 9. With less oxygen as altitude increases, what is the immediate effect of high altitude on the cardiovascular system? A) Increase in heart rate for a faster exchange of O2 and CO2. B) Increase in the number of erythrocytes. C) Decrease in heart rate to slow down the exchange of O2 and CO2. D) Decrease in the number of erythrocytes. Show Answer Correct Answer: A) Increase in heart rate for a faster exchange of O2 and CO2. 10. What is the function of the Vena Cava in the heart's blood circulation process? A) It pumps blood out of the heart to the lungs. B) It carries oxygen-rich blood from the lungs to the heart. C) It carries blood from all over the body back to the heart. D) It prevents blood from passing back into the Right Atrium. Show Answer Correct Answer: C) It carries blood from all over the body back to the heart. 11. Both the superior & inferior vena cava carry blood in to the A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: A) Right atrium. 12. Heart (right ventricle) $\rightarrow$ lungs $\rightarrow$ heart (left atrium) A) Large blood circulation. B) Little blood circulation. Show Answer Correct Answer: B) Little blood circulation. 13. In the lungs, tiny tubes that split off from the bronchial tubes A) Capillaries. B) Cartilage rings. C) Bronchioles. D) None of above. Show Answer Correct Answer: C) Bronchioles. 14. The left side pumps blood to the rest of the body. A) False. B) True. Show Answer Correct Answer: B) True. 15. These are blood vessels that carry blood TO the heart. A) Atria. B) Arteries. C) Ventricles. D) Veins. Show Answer Correct Answer: D) Veins. 16. What structure carry the blood to the heart? A) Aorta. B) Veins. C) Blood. D) Arteries. Show Answer Correct Answer: B) Veins. 17. The pacemaker of the heart A) Because of the difference. B) Bundle of His. C) Bundle branches. D) AV node. Show Answer Correct Answer: A) Because of the difference. 18. They are known as the receiving chambers of the heart. A) Atria. B) Ventricles. C) Valves. D) None of above. Show Answer Correct Answer: A) Atria. 19. Which artery takes blood from the heart to the lungs? A) Hepatic Artery. B) Coronary Artery. C) Renal Artery. D) Pulmonary Artery. Show Answer Correct Answer: D) Pulmonary Artery. 20. Why is it necessary that humans have bones in their body? A) Bones aid in the protection of our soft organs, such as the heart, lungs, and brain. B) Bones produce red and white blood cells, within which red blood cells provide oxygen throughout the body, and white blood cells attack antigens in our body. C) Bone provide the basic structure of the skeletal system in our body. D) All of the answers are correct. Show Answer Correct Answer: D) All of the answers are correct. 21. Choose the complete and logical food chain. A) Eagle $\rightarrow$ squirrel $\rightarrow$ rabbit $\rightarrow$ plant $\rightarrow$ eagle. B) Deer $\rightarrow$ squirrel $\rightarrow$ plant $\rightarrow$ sun. C) Sun $\rightarrow$ plant $\rightarrow$ rabbit $\rightarrow$ eagle. D) Sun $\rightarrow$ deer $\rightarrow$ plant $\rightarrow$ eagle. Show Answer Correct Answer: C) Sun $\rightarrow$ plant $\rightarrow$ rabbit $\rightarrow$ eagle. 22. What body systems work together to acquire (GET) oxygen into the body? A) Muscular system only. B) Respiratory and Muscular. C) Respiratory and Skeletal. D) Respiratory & Integumentary. Show Answer Correct Answer: B) Respiratory and Muscular. 23. What's the #1 cause of death in America? A) Heart Disease. B) Cancer. C) Alzheimer's Disease. D) Diabetes. Show Answer Correct Answer: A) Heart Disease. 24. Which blood vessels pump blood into the left atrium? A) Aorta. B) Pulmonary veins. C) Vena cava. D) Pulmonary arteries. Show Answer Correct Answer: B) Pulmonary veins. 25. What is the effect of blood volume on blood pressure? A) There's no correlation between blood volume & blood pressure. B) Lower blood volume causes higher blood pressure. C) Lower blood volume causes lower blood pressure. D) Higher blood volume causes lower blood pressure. Show Answer Correct Answer: C) Lower blood volume causes lower blood pressure. 26. Carries oxygen-poor blood from the upper body to the heart A) Superior vena cava. B) Inferior vena cava. Show Answer Correct Answer: A) Superior vena cava. 27. The plasma is responsible for the collection of waste materials throughout the body. A) True. B) False. Show Answer Correct Answer: A) True. 28. The children, crying and exhausted, were guided out of the collapsed mine. In the above sentence ..... A) Crying is a gerund and exhausted is a participle. B) Crying is a past participle and exhausted is a present participle. C) Both crying and exhausted are present participles. D) Crying is a present participle and exhausted is a past participle. Show Answer Correct Answer: D) Crying is a present participle and exhausted is a past participle. 29. Oxygen is a waste made by cells. A) True. B) False. Show Answer Correct Answer: B) False. 30. What is the main issue with the blood filled in the atrium? A) High carbon dioxide levels. B) High nutrient levels. C) Lack of wastes. D) Low oxygen levels. Show Answer Correct Answer: D) Low oxygen levels. 31. How many kinds of blood cells are there? A) 3. B) 4. C) 5. D) 2. Show Answer Correct Answer: A) 3. 32. The top chamber of the heart is called the ..... * A) Septum. B) Ventricle. C) Aorta. D) Atrium. Show Answer Correct Answer: D) Atrium. 33. Blood vessel that exchanges oxygen for waste products: A) Artery. B) Vein. C) Capillary. D) None of above. Show Answer Correct Answer: C) Capillary. 34. What is the shape of a human heart? A) Cube. B) Heart. C) Conical. D) Sphere. Show Answer Correct Answer: C) Conical. 35. A valve in the heart that guards the opening between the left atrium and the left ventricle; prevents the blood in the ventricle from returning to the atrium. Alternative name is bicuspid valve. A) Tricuspid valve. B) Pulmonary valve. C) Mitral valve. D) Aortic valve. Show Answer Correct Answer: C) Mitral valve. 36. The smallest solid components of blood that are composed of fragments of megakaryocytes are called A) Plasmas. B) Erythrocytes. C) Thrombocytes. D) Leukocytes. Show Answer Correct Answer: C) Thrombocytes. 37. State the pathway that oxygenated blood takes from the lungs to the working muscles A) Enters left atrium via pulmonary vein, enters left ventricle via bicuspid (atrio-ventricular valve), exits left ventricle via aortic (semi-lunar) valve, aorta carries blood away from the heart to the body. B) Enters right atrium via vena cava, enters right ventricle via triscupid valve, exits pulmonary artery into the lungs for gaseous exchange. Show Answer Correct Answer: A) Enters left atrium via pulmonary vein, enters left ventricle via bicuspid (atrio-ventricular valve), exits left ventricle via aortic (semi-lunar) valve, aorta carries blood away from the heart to the body. 38. What do you call the muscular wall that separates the heart chambers into partition? A) Artery. B) Septum. C) Valve. D) Vein. Show Answer Correct Answer: B) Septum. 39. The part of the blood that causes clotting. A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 40. What does an "exchange of gases" mean? A) It means that gases are apart of everything. B) It means that orange juice is an upside down milkshake with a missing tail. C) It means that humans and plants trade gases back and forth. D) It means that carbon in apart of all living things. Show Answer Correct Answer: C) It means that humans and plants trade gases back and forth. 41. What is the total length of blood vessels in a human body? A) 6 miles. B) 60, 000 miles. C) 60 miles. D) 6, 000 miles. Show Answer Correct Answer: B) 60, 000 miles. 42. ..... pumps blood to all body parts A) Aorta. B) Liver. C) Heart. D) Pulmonary artery. Show Answer Correct Answer: C) Heart. 43. Helps blood to clot to prevent excess blood loss A) Red blood cells. B) Veins. C) Platelets. D) None of above. Show Answer Correct Answer: C) Platelets. 44. Which best explains why capillary walls are so thin? A) Because they do not need to pump blood. B) Because they are found only in the smallest organs and tissues. C) Because they maximize diffusion of nutrients. D) Because blood only travels through them slowly. Show Answer Correct Answer: C) Because they maximize diffusion of nutrients. 45. Which are the blood vessels that carry blood to the heart? A) Arteries. B) Capillaries. C) Lymph nodes. D) Veins. Show Answer Correct Answer: D) Veins. 46. Recall the name of receiving chambers of the heart. A) The septum. B) The ventricle. C) The sinoatrial node. D) The atrium. Show Answer Correct Answer: D) The atrium. 47. Which of the following processes causes the exchange of carbon dioxide in the blood? A) Inhalation. B) Circulation. C) Diffusion. D) Respiration. Show Answer Correct Answer: C) Diffusion. 48. What is deoxygenated blood? A) Blood with very little oxygen in. B) Blood with lots of oxygen in. C) Blood with very few platelets in. D) None of above. Show Answer Correct Answer: A) Blood with very little oxygen in. 49. Where does the right ventricle send blood during systole? A) Superior vena cava. B) Left ventricle. C) Aorta. D) Pulmonary artery. Show Answer Correct Answer: D) Pulmonary artery. 50. 60% of the body is made of water A) False. B) True. Show Answer Correct Answer: B) True. 51. Are tubes that serve as passageways for blood to reach the different parts of the body. A) Ventricles. B) Blood vessels. C) Blood. D) Valve. Show Answer Correct Answer: B) Blood vessels. 52. Divided into two groups, namely granulocytes and agranulocytes. This includes aspects..... A) Leukocytes (White blood cells). B) Erythrocytes (Red blood cells). C) Thrombocytes (Blood clots). D) Blood plasma. Show Answer Correct Answer: A) Leukocytes (White blood cells). 53. What makes the "lub, dub" sound of a beating heart? A) The ventricles contracting. B) The atria contracting. C) The opening and closing of heart valves. D) None of the above. Show Answer Correct Answer: C) The opening and closing of heart valves. 54. This is synonymous with epicardium A) Pericardial cavity. B) Mesothelial pericardium. C) Visceral pericardium. D) Parietal pericardium. Show Answer Correct Answer: C) Visceral pericardium. 55. Myocardial infarction is another name for A) Enlarged heart. B) Heart cancer. C) Heart attack. D) Stroke. Show Answer Correct Answer: C) Heart attack. 56. The left-upper side on the image that we discussed is called A) Right Atrium. B) Left Atrium. C) Right Ventricle. D) Left Ventricle. Show Answer Correct Answer: A) Right Atrium. 57. If a patient receives a transfusion of the wrong blood type A) An adverse reaction could result in the patients death. B) Patient antibodies could react with the donor's RBCs. C) The donor's RBCs could clump together (agglutinate). D) All of the options are correct. Show Answer Correct Answer: D) All of the options are correct. 58. The temperature at which air is saturated and condensation forms. A) Precipitation. B) Isobar. C) Heat. D) Dew Point. Show Answer Correct Answer: D) Dew Point. 59. Which vessels have the lowest pressure A) Arteries. B) Venules. C) Capillaries. D) Veins. Show Answer Correct Answer: D) Veins. 60. When you are feeling for your pulse you are detecting the A) Regular expansion and contraction of the arteries in response to your heartbeat. B) Your heart starting and stopping as it beats. C) Blood being pushed through your veins. D) Blood flowing through your capillaries. Show Answer Correct Answer: A) Regular expansion and contraction of the arteries in response to your heartbeat. ← 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