This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 37 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 37 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Blood flows in the following sequence in the heart:Superior vena cava/Inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonic valve, pulmonary artery, lungs, pulmonary vein, left atrium, bicuspid valve, left ventricle, aortic valve, aorta A) True. B) False. Show Answer Correct Answer: A) True. 2. Identify the correct organs for the Circulatory System: A) Mouth, Esophagus, Stomach, Small and Large Intestines. B) Nose, Trachea, Lungs. C) Heart, Veins, Arteries. D) None of above. Show Answer Correct Answer: C) Heart, Veins, Arteries. 3. ..... are the 4 blood types. A) O. B) A. C) B. D) All. Show Answer Correct Answer: D) All. 4. Which of the following structures have a role in transporting substances in plants? A) Arteries & veins. B) Arteries and xylem. C) Arteries and phloem. D) Xylem & phloem. Show Answer Correct Answer: D) Xylem & phloem. 5. Which activity should raise your heart rate the most? A) Sitting on a chair. B) Stretching. C) Stationary lunges. D) Running a mile. Show Answer Correct Answer: D) Running a mile. 6. I Carry DEOXYGENATED blood from the from the RIGHT ventricle to the lungs A) Pulmonary artery. B) Pulmonary Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Pulmonary artery. 7. What are Leukocytes? A) Plasma. B) Red blood cells. C) White blood cells. D) Platelets. Show Answer Correct Answer: C) White blood cells. 8. What is the significance of the pathways in the circulatory system? A) Coordinate contraction of the heart. B) None of the above. C) Direct blood where it should go. D) None of above. Show Answer Correct Answer: C) Direct blood where it should go. 9. It is the pigment that gives color to the blood. A) Melanin. B) Keratin. C) Hemoglobin. D) None of above. Show Answer Correct Answer: C) Hemoglobin. 10. What is the primary function of arteries? A) To carry blood toward the heart. B) To carry blood away from the heart. C) To transport waste-rich blood to the lungs. D) To allow blood to move in one direction. Show Answer Correct Answer: B) To carry blood away from the heart. 11. Where does blood flow after entering the left ventricle? A) Aorta. B) Pulmonary Vein. C) Vena Cava. D) Pulmonary Artery. Show Answer Correct Answer: A) Aorta. 12. Which blood vessel has thick walls? A) Capillaries. B) Veins. C) Ducts. D) Arteries. Show Answer Correct Answer: D) Arteries. 13. The coronary arteries are found in the A) Arms. B) Legs. C) Chest. D) Head/neck. Show Answer Correct Answer: C) Chest. 14. Which component of blood is responsible for forming blood clots in order to stop bleeding? A) Red Blood Cells. B) Plasma. C) White Blood Cells. D) Platelets. Show Answer Correct Answer: D) Platelets. 15. Body Cavity in which Heart is present A) Thoracic. B) Abdominal. C) Cranial. D) Orbital. Show Answer Correct Answer: A) Thoracic. 16. Through which vessel does gas exchange happen? A) Artery. B) Liver. C) Vein. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 17. This chamber of the heart RECEIVES blood returning from the lung A) Left Ventricle. B) Left Atrium. C) Right Ventricle. D) Right Atrium. Show Answer Correct Answer: B) Left Atrium. 18. The lymph nodes, tonsils and spleen are parts of the ..... system. A) Circulatory system. B) Respiratory system. C) Lymphatic system. D) None of above. Show Answer Correct Answer: C) Lymphatic system. 19. What function does the heart do? A) Protects organs and produces red blood cells. B) Generates heat. C) Breaks down food into nutrients. D) The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows. Show Answer Correct Answer: D) The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows. 20. What part of blood is responsible for caring oxygen? A) Erythrocytes. B) Thrombocytes. C) Plasma. D) Leukocytes. Show Answer Correct Answer: A) Erythrocytes. 21. To veins carry blood to or away from the heart A) To the Heart. B) Away from the Heart. Show Answer Correct Answer: A) To the Heart. 22. For a normal person, how many times does a heart contract per minute? A) 72 times. B) 100 times. C) 120 times. D) 50 times. Show Answer Correct Answer: A) 72 times. 23. The ..... system is made up of:1. Heart. 2. Blood. 3. Blood vessels. A) Circulatory. B) Digestive. C) Nervous. D) None of above. Show Answer Correct Answer: A) Circulatory. 24. Another term for high blood pressure is A) Hydrophobia. B) Hypothermia. C) Hydrolysis. D) Hypertension. Show Answer Correct Answer: D) Hypertension. 25. What are the two main organs of the lymph system? A) Thymus & Pancreas. B) Spleen & Thymus. C) Pancreas & Thyroid. D) Tonsils and Thyroid. Show Answer Correct Answer: B) Spleen & Thymus. 26. ..... carry oxygen and nutrients to all cells in the body. A) Valves. B) Capillaries. C) Veins. D) Arteries. Show Answer Correct Answer: D) Arteries. 27. What are the components of blood? A) RBCs only. B) RBCs, WBCs, Platelets. C) Plasma only. D) RBCs, WBCs, Platelets, Plasma. Show Answer Correct Answer: D) RBCs, WBCs, Platelets, Plasma. 28. Then, it passes to the left ventricle which sends blood around the entire body through the aorta A) 3. B) 4. C) 2. D) 1. E) 5. Show Answer Correct Answer: E) 5. 29. Which body system does your cardiovascular system work with to oxygenate the blood? A) Muscular. B) Respiratory. C) Skeletal. D) Lymphatic. Show Answer Correct Answer: B) Respiratory. 30. After a few days at altitude the number of RBCs can increase to cope with the reduction of low pO2. What is this called A) Capillarisation. B) Vasodilation. C) Acclimatisation. D) Haemodilation. Show Answer Correct Answer: C) Acclimatisation. 31. The right side of your heart pumps ..... through your lungs to pick up oxygen A) Oxygen-rich blood. B) Oxygen-poor blood. Show Answer Correct Answer: B) Oxygen-poor blood. 32. What is the use of platelets in the body A) Needed for digestion. B) Needed for immunity. C) Needed for energy. D) Needed for clotting. Show Answer Correct Answer: D) Needed for clotting. 33. The largest artery in the circulatory system transporting oxygenated blood to the body is called A) Pulmonary artery. B) Aorta. C) Hepatic artery. D) Pulmonary vein. E) Renal artery. Show Answer Correct Answer: B) Aorta. 34. Gas we breathe in A) Carbon dioxide. B) Oxygen. C) Helium. D) None of above. Show Answer Correct Answer: B) Oxygen. 35. Blood flow from the vena cava to the coronary veins via the heart, how many heart chambers does the blood pass through? A) 4. B) 3. C) 1. D) 2. Show Answer Correct Answer: A) 4. 36. Which organs are part of the circulatory system? A) Liver, stomach, intestines. B) Brain, spinal cord, nerves. C) Heart, arteries, veins, capillaries. D) Heart, lungs, kidneys. Show Answer Correct Answer: C) Heart, arteries, veins, capillaries. 37. What gives platelets the ability to clot? A) Platin. B) Healin. C) Clotterin. D) Fibrin. Show Answer Correct Answer: D) Fibrin. 38. Blood takes carbon dioxide and waste products away. A) False. B) True. Show Answer Correct Answer: B) True. 39. A condition that develops when your blood lacks enough healthy red blood cells or hemoglobin A) Not Anemia. B) Platelets. C) Anemia. D) Lymphatic System. Show Answer Correct Answer: C) Anemia. 40. After air moves through the pharynx it continues downward. The ....., or windpipe, directs the air into 2 separate branches or tubes. A) Mucus. B) Epiglottis. C) Larynx. D) Trachea. Show Answer Correct Answer: D) Trachea. 41. Located between the right ventricle and the pulmonary artery A) Tricuspid valve. B) Pulmonary valve. C) Aortic valve. D) Mitral valve. Show Answer Correct Answer: B) Pulmonary valve. 42. These are tubes that carry blood back to the heart: A) Arteries. B) Veins. C) Valve. D) Vessels. Show Answer Correct Answer: B) Veins. 43. Cell found in blood that delivers oxygen to body cells A) Red blood cells. B) White blood cells. C) Platelets. D) None of above. Show Answer Correct Answer: A) Red blood cells. 44. Which vein transfer OXYGENATED BLOOD A) Pulmonary artery. B) Pulmonary vein. C) Aorta. D) Vena cava. Show Answer Correct Answer: B) Pulmonary vein. 45. Your heart has two sides and four chambers, or rooms. Based on what you read, the upstairs rooms are called ....., and the downstairs rooms are called ..... A) Valves and Ventricles. B) Valves and Chambers. C) Atria and Ventricles. D) Chambers and Vessels. Show Answer Correct Answer: C) Atria and Ventricles. 46. Our heart is ..... A) A body system. B) An organ. C) A group of cells. D) A tissue. Show Answer Correct Answer: B) An organ. 47. What is one of the parts in the circulatory system? A) Muscles. B) SKin. C) Bones. D) Heart. Show Answer Correct Answer: D) Heart. 48. John has blood pressure 183/81, what is John's systolic pressure? A) 183. B) 183/81. C) 81. D) 81/183. Show Answer Correct Answer: A) 183. 49. True or False:The blood in your veins is blue A) False. B) True. Show Answer Correct Answer: A) False. 50. How many % of blood is liquid? A) 45 %. B) 35 %. C) 65 %. D) 55 %. Show Answer Correct Answer: D) 55 %. 51. The blood vessel that bring blood out of heart is ..... A) Arteries. B) Veins. C) Capillaries. D) All answers are correct. Show Answer Correct Answer: A) Arteries. 52. What is the correct path of blood through the heart chambers? A) Ventricle to atrium. B) Atrium to ventricle. Show Answer Correct Answer: B) Atrium to ventricle. 53. What side of your heart pumps out the blood that's already been to your lungs and is now full of oxygen A) Down. B) Up. C) Right. D) Left. Show Answer Correct Answer: D) Left. 54. Blood vessels that are the smallest and connect arteries to veins A) Veins. B) Capillaries. C) Arteries. D) Valves. Show Answer Correct Answer: B) Capillaries. 55. The pulmonary vein carries ..... A) A-Oxygenated blood. B) B-deoxygenated blood. C) Both a & b. D) None of above. Show Answer Correct Answer: A) A-Oxygenated blood. 56. During the gas exchange process of the blood by the lungs, what enters from alveoli to the capillaries? A) Nitrogen. B) Ill. C) CO. D) O2. Show Answer Correct Answer: D) O2. 57. What are the names of the chambers of the heart? A) Left chambers, right chambers. B) Left&Right Aorta, Left&Right Pulmonary. C) Top Chambers, Bottom Chambers. D) Left&Right Atrium, Left&Right Ventricle. Show Answer Correct Answer: D) Left&Right Atrium, Left&Right Ventricle. 58. How many sizes did the Grinch's heart grow on Christmas? A) Five sizes. B) Four sizes. C) Three sizes. D) Two sizes. Show Answer Correct Answer: C) Three sizes. 59. In which of the following organisms, the system that acts as both digestive and circulatory system? Which of the following organisms has a system that functions as a digestive and circulatory system? A) Arthropods are arthropods. B) Platehelementhes Platyhelminthis. C) Earthworm. D) Nematodes are nematodes. Show Answer Correct Answer: B) Platehelementhes Platyhelminthis. 60. What do arteries do? A) Transport blood from the body to the heart. B) Fight infection cells. C) Break down food into nutrients. D) Transport blood from the heart to the body's cells. Show Answer Correct Answer: D) Transport blood from the heart to the body's cells. ← 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