This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following contains oxygenated blood? A) Right atrium. B) Left atrium. C) Pulmonary artery. D) Superior vena cava. Show Answer Correct Answer: B) Left atrium. 2. The sinoatrial node is located in the: A) Aorta. B) Right ventricle. C) Left atrium. D) Right atrium. Show Answer Correct Answer: D) Right atrium. 3. A blood vessel that carries blood away from the heart to the body's organs A) Vein. B) Organs. C) Artery. D) Capillary. Show Answer Correct Answer: C) Artery. 4. Arteries carry blood ..... from the heart. A) Towards. B) Away. Show Answer Correct Answer: B) Away. 5. Ensures unidirectional flow of blood; Covered by endothelium A) Cardiac valves. B) Cardiovascular valves. C) Cardiac skeleton. D) Impulse valves. Show Answer Correct Answer: A) Cardiac valves. 6. Largest vein connected to the heart A) ARTERIOLES. B) VENA CAVA. C) AORTA. D) VENULES. Show Answer Correct Answer: B) VENA CAVA. 7. Plants are producers, what do they produce that animals need to survive? A) Food. B) Oxygen. C) Both Food and Oxygen. D) Neither. Show Answer Correct Answer: C) Both Food and Oxygen. 8. The heart of a healthy person beats A) 80. B) 70. C) 60. D) 90. Show Answer Correct Answer: B) 70. 9. A blockage in a coronary artery can cause a person to suffer a ..... A) Heart attack. B) Heart beat. C) Heart stopper. D) None of above. Show Answer Correct Answer: A) Heart attack. 10. What does the blood drop off at the lungs before re-entering the heart through the left atrium? A) Nutrients. B) Oxygen (O2). C) Plasma. D) Carbon Dioxide (CO2). Show Answer Correct Answer: D) Carbon Dioxide (CO2). 11. The lower chamber on the right side of the heart A) Right atrium. B) Artery. C) Right ventricle. D) Vein. Show Answer Correct Answer: C) Right ventricle. 12. The chamber of the heart responsible for receiving blood as it returns from the lungs after it has been reoxygenated. A) Right Atrium. B) Left Ventricle. C) Left Atrium. D) Right Ventricle. Show Answer Correct Answer: C) Left Atrium. 13. Seth wants to know if an apple's freshness will last longer if they are refrigerated. What is the dependent variable? A) The freshness of the apple. B) Temperature of the refrigerator. C) The refrigerator. D) The type of apple. Show Answer Correct Answer: A) The freshness of the apple. 14. If a person is in the ED for treatment of an Acute Myocardial Infarction (AMI) within 4 weeks of a prior, how would you sequence the categories? A) I22, I21. B) I21, I22. C) He hindered. D) I21. Show Answer Correct Answer: A) I22, I21. 15. When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the: A) Left ventricle to the right ventricle. B) Right atrium to the left atrium. C) Right ventricle to the right atrium. D) Left ventricle to the left atrium. Show Answer Correct Answer: D) Left ventricle to the left atrium. 16. Circulatory system of earthworm is ..... A) (a) Open. B) (b) Closed. C) Both a and b. D) Open anteriorly. Show Answer Correct Answer: B) (b) Closed. 17. Where material exchange takes place between the cells and blood vessels: A) Venules. B) Arteries. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 18. What is the function of human blood? A) Maintains pH and temperature. B) Transports nutrients and gases. C) None of the above. D) All of the above. Show Answer Correct Answer: D) All of the above. 19. What is known as platelets, and in one drop of blood has from 250, 000 to 400, 000 of it, and it is important for blood clotting to stop bleeding? A) Leukocytes. B) Thrombocytes. C) Erythrocytes. D) None of above. Show Answer Correct Answer: B) Thrombocytes. 20. Blood types are characterized by the presence or absence of ..... A) Antibodies in Plasma. B) The Rh factor. C) Antigens on the cell Surface membrane of the RBCs. D) None of above. Show Answer Correct Answer: C) Antigens on the cell Surface membrane of the RBCs. 21. MOST veins carry ..... blood. A) Oxygen-rich, or oxygenated. B) Oxygen-poor, or deoxygenated. Show Answer Correct Answer: B) Oxygen-poor, or deoxygenated. 22. How many chambers does a human heart have? A) 6. B) 4. C) 2. D) 3. Show Answer Correct Answer: B) 4. 23. Microscopic vessels where exchange of important substances/wastes occur; walls are 1 cell thick. A) Capillaries. B) Veins. C) Arteries. D) Lymph nodes. Show Answer Correct Answer: A) Capillaries. 24. When this chamber contracts, it pushes blood through the tricuspid valve A) Left ventricle. B) Right ventricle. C) Left atria. D) Right atria. Show Answer Correct Answer: D) Right atria. 25. Oxygen rich blood goes back to the heart through the pulmonary veins and enters the left atrium A) 4. B) 5. C) 1. D) 2. E) 3. Show Answer Correct Answer: A) 4. 26. Which on of the following is not a function of the blood A) Transport Co2. B) Help control body temperature. C) Form blood clots. D) Transport Nutrients. Show Answer Correct Answer: C) Form blood clots. 27. The pulsation is felt due to the elastic outer layer A) Venous Vessels (Back) [6]. B) Arteries (pulses) [6]. Show Answer Correct Answer: B) Arteries (pulses) [6]. 28. What digestive organ releases enzymes that help break down starches, proteins, and fats in the small intestine? A) Large intestine. B) Liver. C) Pancreas. D) Stomach. Show Answer Correct Answer: C) Pancreas. 29. Name any two yoga asanas A) Tandasana. B) Vrikshana. C) Both. D) Ureter. Show Answer Correct Answer: C) Both. 30. Which chamber of the heart pumps oxygen-poor blood to the lungs? A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: D) Right ventricle. 31. ..... is a yellowish liquid which is 90% water. It carries the nutrients and waste products. A) Veins. B) Plasma. C) Arteries. D) Platelets. Show Answer Correct Answer: B) Plasma. 32. Are in charge of blood coagulation A) Blood. B) Plasma. C) Platelets. D) White blood cells. E) Red blood cells. Show Answer Correct Answer: C) Platelets. 33. Why are capillaries' total cross-sectional area much larger than arteries? A) To increase blood pressure. B) To carry blood from the heart. C) To reduce blood flow. D) To allow slow exchange of substances with tissues. Show Answer Correct Answer: D) To allow slow exchange of substances with tissues. 34. Which of the following answers correctly sequences the pathway food takes from the beginning to end? A) Mouth, esophagus, stomach, small intestine, large intestine. B) Mouth, esophagus, stomach, large intestine, small intestine. C) Mouth, stomach, esophagus, small intestine, large intestine. D) Mouth, stomach, esophagus, large intestine, small intestine. Show Answer Correct Answer: A) Mouth, esophagus, stomach, small intestine, large intestine. 35. Flaps of connective tissue, called ....., are located between the atria and ventricles of the heart to maintain pressure and prevent blood from being leaked back into the heart. A) Contractions. B) Arteries. C) Valves. D) Veins. Show Answer Correct Answer: C) Valves. 36. Blood is made up of A) Water and white blood cells. B) Cells and plasma. C) Nutrients and oxygen. D) White and red blood cells. Show Answer Correct Answer: B) Cells and plasma. 37. How does the circulatory system and the respiratory system work together? A) The circulatory system carries oxygen to and from the lungs. B) The circulatory system moves the body from place to place. C) The respiratory system pumps blood throughout the body. D) The respiratory system helps in the digestion process. Show Answer Correct Answer: A) The circulatory system carries oxygen to and from the lungs. 38. A group of organs that move materials to body cells and waste is called A) Artery. B) Pulmonary Circulation. C) Platelets. D) Circulatory System. Show Answer Correct Answer: D) Circulatory System. 39. What are platelets? A) Prevent backflow of blood. B) Red & white blood cells. C) Tiny pieces of blood cells inside membranes. D) Damaged blood vessels. Show Answer Correct Answer: C) Tiny pieces of blood cells inside membranes. 40. Through which highway does the blood flow from the heart? A) Arteries. B) Capillaries. C) Veins. D) Aorta. Show Answer Correct Answer: D) Aorta. 41. Sudden death of brain cells due to a problem with the blood supply caused by a blockage or the rupture of an artery A) Aneurysm. B) Atherosclerosis. C) Coronary artery disease. D) Stroke. Show Answer Correct Answer: D) Stroke. 42. Which of the following measures is harmful to the cardiovascular system? A) Do not use harmful stimulants such as alcohol and tobacco. B) Vaccinate against diseases harmful to the heart such as influenza, typhoid, and diphtheria. C) Eat a lot of fat and animal organs. D) Exercise regularly and moderately. Show Answer Correct Answer: C) Eat a lot of fat and animal organs. 43. What is hypertension also known as? A) High blood pressure. B) Low blood pressure. C) Blood. D) Hyperextension. Show Answer Correct Answer: A) High blood pressure. 44. About how many lymph nodes do we have in our body? A) 50-100. B) 5, 000-10, 000. C) 500-1, 000. D) 5-10. Show Answer Correct Answer: C) 500-1, 000. 45. Tiny blood vessels that connect arteries to veins A) Ventricles. B) Septum. C) Capillaries. D) Tendons. Show Answer Correct Answer: C) Capillaries. 46. Small cells that engulf and destroy microbes and cellular debris in the CNS A) Microglia. B) Horns. C) Astrocytes. D) Neuroglia. Show Answer Correct Answer: A) Microglia. 47. White blood cells A) Carry oxygen and other gases. B) Fight infection. C) Stop bleeding. D) None of above. Show Answer Correct Answer: B) Fight infection. 48. The heartbeat is the heart contracting or squeezing. A) False. B) True. Show Answer Correct Answer: B) True. 49. The only artery that carries carbondioxide rich blood ..... A) Pulmonary artery. B) Pullmonary vein. C) Aorta. D) Auricle. Show Answer Correct Answer: A) Pulmonary artery. 50. The pigment present in the blood that gives it red colour A) Haemoglobin. B) Chlorophyll. C) Bone marrow. D) Muscles. Show Answer Correct Answer: A) Haemoglobin. 51. Pumping organ of the circulatory system A) Heart. B) Aorta. C) Septum. D) None of above. Show Answer Correct Answer: A) Heart. 52. What did some scientists, like Jacobus Sylvius, tell Vesalius when he discovered issues with Galen's teachings? A) All of Galen's work was a lie. B) The human body has changed since Galen described it. C) Galen changed his writings so he wouldn't get in trouble with the church. D) Galen studied women and they studied men, which was why there were differences. Show Answer Correct Answer: B) The human body has changed since Galen described it. 53. What is the function of sinks? A) Regulating the volume transported by the phloem. B) Moral support for the phloem. C) Extracting molecules from the phloem for glycogen production. D) Storing molecules transported by the phloem. Show Answer Correct Answer: D) Storing molecules transported by the phloem. 54. These are small, spherical enucleated and biconcave cells that carry oxygen. A) Thrombocytes. B) Leucocytes. C) Erythrocytes. D) Plasma. Show Answer Correct Answer: C) Erythrocytes. 55. Superior vena cave brings blood from organs of the body that lie below the heart A) True. B) False. Show Answer Correct Answer: B) False. 56. Oxygenated blood pathway arrange steps from 1-7:left ventricle A) 5. B) 6. C) 3. D) 4. E) 7. Show Answer Correct Answer: A) 5. 57. Which blood type can give to anyone? A) Type C. B) Type O. C) Type AB. D) Type AB-. Show Answer Correct Answer: B) Type O. 58. Where do coronary arteries carry blood? A) Lungs. B) Heart. C) Upper body. D) Lower body. Show Answer Correct Answer: B) Heart. 59. Which chamber of the heart pumps oxygenated blood to the rest of the body? A) Left ventricle. B) Left atrium. C) Right ventricle. D) Right atrium. Show Answer Correct Answer: A) Left ventricle. 60. You obtein the oxygen your body needs through ..... A) Digestion. B) Respiration. C) Excretion. D) None of above. Show Answer Correct Answer: B) Respiration. ← 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