This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 115 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 115 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Active phagocytes A) Neutrophils. B) Monocytes. C) Eosinophils. D) Basophils. Show Answer Correct Answer: A) Neutrophils. 2. Which type of blood vessel has valves to prevent blood from flowing backwards? A) Arteries. B) Lymph vessels. C) Veins. D) Capillaries. Show Answer Correct Answer: C) Veins. 3. At which point, A, B, C, D or E in the graph did Robin start taking a break? A) D. B) A. C) C. D) B. Show Answer Correct Answer: C) C. 4. Where are red blood cells produced? A) Valves. B) Lungs. C) Bone Marrow. D) Heart. Show Answer Correct Answer: C) Bone Marrow. 5. Which of the following blood pressure readings is hypertensive? A) 160/100. B) 120/70. C) 90/50. D) 130/80. Show Answer Correct Answer: A) 160/100. 6. Blood with oxygen * A) Goes toward the heart from the cells. B) Leaves the heart to go to cells. Show Answer Correct Answer: B) Leaves the heart to go to cells. 7. In normal people, how long is the ventricular rest time in each cycle? A) 0.5 seconds. B) 0.4 seconds. C) 0.6 seconds. D) 0.3 seconds. Show Answer Correct Answer: A) 0.5 seconds. 8. Carry oxygen in the blood and are small disk-shaped cells that have no nucleus and are made mostly of hemoglobin. A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: A) Red blood cells. 9. What helps the blood flow in one direction? A) Valves. B) Veins. C) Arteries. D) Iron. Show Answer Correct Answer: A) Valves. 10. Which system does the circulatory system work with to carry oxygen and fight disease? A) Digestive System. B) Respiratory System. C) Wait What?!. D) Skeletal System. Show Answer Correct Answer: D) Skeletal System. 11. They are produced in the lymph nodes A) White blood cells. B) Red blood cells. C) Transportation path. D) Plasma. E) Blood. Show Answer Correct Answer: A) White blood cells. 12. As a venous pathway moves closer to the heart, the veins A) Get smaller. B) Get larger. C) Do not change in size. D) Watch netflix. Show Answer Correct Answer: B) Get larger. 13. Our circulatory system is like a transport system A) True. B) False. Show Answer Correct Answer: A) True. 14. Circulatory system is a system that supplies the body with ..... A) A & b. B) Nutrients. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: A) A & b. 15. Over half of blood consists of ..... A) Plasma. B) White Blood Cells. C) Red Blood Cells. D) Platelets. Show Answer Correct Answer: A) Plasma. 16. A person with blood group 'O' are called as ..... A) Universal donor. B) Universal recipient. C) None of the above. D) None of above. Show Answer Correct Answer: A) Universal donor. 17. What serve as the link between sensory and motor nerve cells? A) Sensory. B) Motor. C) Interneurons. D) None of above. Show Answer Correct Answer: C) Interneurons. 18. What is the largest artery in your body that carries blood from the heart to the body? A) Aorta. B) Septum. C) Pacemaker. D) None of above. Show Answer Correct Answer: A) Aorta. 19. Blood vessels that brings blood to theheart. A) Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Veins. 20. Which blood vessel has the thickest wall? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Arteries. 21. Which chamber of the heart sends oxygenated blood to the aorta and all parts of the body? A) Right ventricle. B) Left atrium. C) Right atrium. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 22. The ..... is a thin hair-liked blood vessels. A) Blood Vessels. B) Capillary. C) Heart. D) Arteries. Show Answer Correct Answer: B) Capillary. 23. What do the platelets help repair? A) Help blood clot. B) Pump the blood. C) Damaged tissue. D) Damaged blood vessels. Show Answer Correct Answer: D) Damaged blood vessels. 24. What is the myocardium A) Heart sinus. B) Heart chamber. C) Heart muscle. D) Heart valve. Show Answer Correct Answer: C) Heart muscle. 25. Which of the following cells are able to leave the bloodstream? A) Electrocytes. B) Erythrocytes. C) Leukocytes. D) Thrombocytes. Show Answer Correct Answer: C) Leukocytes. 26. Water is absorbed by the plant through the roots, and transpiration takes place as the water exits the ..... A) Leaves. B) Roots. C) Stem. D) None of above. Show Answer Correct Answer: A) Leaves. 27. Which organ of fish is responsible for gas exchange? A) Heart. B) Stomach. C) Gum. D) Blood vessels. Show Answer Correct Answer: C) Gum. 28. The veins carry deoxygenated blood except ..... A) Vena cava. B) Pulmonary vein. C) Subclavian vein. D) Pulmonary artery. Show Answer Correct Answer: B) Pulmonary vein. 29. The liquid that fills living cells A) Oxygen. B) Cytoplasm. C) Blood. D) Salt water. Show Answer Correct Answer: B) Cytoplasm. 30. Which body part gives our blood oxygen? A) Lungs. B) Heart. C) Arteries. D) Veins. Show Answer Correct Answer: A) Lungs. 31. The circulatory system works with the ..... system to transport digested food to the cells. A) Respiratory. B) Nervous. C) Skeletal. D) Digestive. Show Answer Correct Answer: D) Digestive. 32. The ..... reacts with the nutrients and burns or transforms it into energy. A) Carbon Dioxide. B) Glucose. C) Oxygen. D) Enzymes. Show Answer Correct Answer: C) Oxygen. 33. In which type of blood vessels is blood pressure the highest? A) Apex. B) Veins. C) Arteries. D) Capillaries. Show Answer Correct Answer: C) Arteries. 34. What is the arrow pointing to? A) Right atrium. B) Right ventricle. C) Left ventricle. D) Left atrium. Show Answer Correct Answer: B) Right ventricle. 35. Blood is which type of tissue- A) Muscular. B) Epithelial. C) Nervous. D) Connective. Show Answer Correct Answer: D) Connective. 36. Red blood cells contain ..... A) Hemoglobin. B) Bile. C) Valves. D) None of above. Show Answer Correct Answer: A) Hemoglobin. 37. Vocal cords are attached here. Forcing air between them causes vibrations that produce sound. A) Lungs. B) Alveoli. C) Larynx. D) Pharynx. Show Answer Correct Answer: C) Larynx. 38. Formed elements make up about what percentage of blood? A) 45 percent. B) 60 percent. C) 20 percent. D) 55 percent. Show Answer Correct Answer: A) 45 percent. 39. Study the diagram and choose the correct answer. A) 2. B) 1. C) 3. D) 4. Show Answer Correct Answer: A) 2. 40. The lymphatic structure that closely parallell veins are called? A) Capillaries. B) Lymph. C) Lymph Vessels. D) None of above. Show Answer Correct Answer: C) Lymph Vessels. 41. Prevents oxygen-rich and oxygen-poor blood from mixing in the heart A) Valve. B) Atrium. C) Aorta. D) Septum. Show Answer Correct Answer: D) Septum. 42. The circulatory system consists of what in the human body? A) Arms, legs, head. B) Heart, blood vessels, blood. C) Brain, back, arms. D) Lungs, stomach, colon. Show Answer Correct Answer: B) Heart, blood vessels, blood. 43. What is the function of your circulatory system? A) Allow movement of your body. B) Provide support and protect internal organs. C) Bring in oxygen and release carbon dioxide. D) Transport nutrients, oxygen, and hormones through the body. Show Answer Correct Answer: D) Transport nutrients, oxygen, and hormones through the body. 44. What is the function of the large intestine? A) The absorption of water and some vitamins, formation and storage of faeces. B) The absorption of nutrients. C) The digestion of fats. D) Transport the nutrients to the blood stream. Show Answer Correct Answer: A) The absorption of water and some vitamins, formation and storage of faeces. 45. I am part of the blood but am mostly water. Blood cells float in me. A) Plasma. B) Red blood cells. C) Platelets. D) White blood cells. Show Answer Correct Answer: A) Plasma. 46. What type of blood do veins transport back to the heart and lungs? A) Waste-rich/oxygen-poor blood. B) Blood with high glucose levels. C) Nutrient-rich blood. D) Oxygen-rich blood. Show Answer Correct Answer: A) Waste-rich/oxygen-poor blood. 47. Which component of blood carries oxygen to the body cells? A) White blood cells. B) Red blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: B) Red blood cells. 48. The circulatory system transports ..... A) Oxygen. B) Nutrient. C) Carbon dioxide. D) All are correct. Show Answer Correct Answer: D) All are correct. 49. What kind of blood flows into the right side of the heart A) Oxygenated Blood. B) Deoxygenated blood. Show Answer Correct Answer: B) Deoxygenated blood. 50. What circulation route carries blood to and from the heart and lungs? A) Body Circulation. B) Pulmonary Circulation. C) Heart Circulation. D) Systemic Circulation. Show Answer Correct Answer: B) Pulmonary Circulation. 51. Identify the type of blood vessel described:A blood vessel that has very thin walls, only one cell thick and is where gas exchange occurs. A) Vein. B) Artery. C) Capillary. D) None of above. Show Answer Correct Answer: C) Capillary. 52. Diffusion is the movement of particles from an area of ..... concentration to an area of ..... concentration A) High, Low. B) High, High. C) Low, Low. D) Low, High. Show Answer Correct Answer: A) High, Low. 53. What are valves? A) Thin tissue that flows blood to the heart. B) Strong, thin flaps of tissue that keeps blood flowing in the right direction. C) Flimsy tissue that removes bad blood. D) None of above. Show Answer Correct Answer: B) Strong, thin flaps of tissue that keeps blood flowing in the right direction. 54. Mammals have a ..... A) Single circulatory system. B) Double circulatory system. Show Answer Correct Answer: B) Double circulatory system. 55. Oxygenated blood nourishing the myocardium comes from vessels that branch off the aorta called A) Pulmonary veins. B) Coronary arteries. C) Vena cava. D) Pulmonary arteries. Show Answer Correct Answer: B) Coronary arteries. 56. Which one correctly describes a vein? A) Low blood pressure, large lumen, valves present. B) Low blood pressure, small lumen, valves present. C) Low blood pressure, small lumen, valves absent. D) High blood pressure, large lumen, valves absent. Show Answer Correct Answer: A) Low blood pressure, large lumen, valves present. 57. Which blood cells carry oxygen throughout the body? A) White. B) Platelets. C) Plasma. D) Red. Show Answer Correct Answer: D) Red. 58. What is the role of the lymphatic vessels in the circulatory system? A) They carry oxygen to the tissues. B) They transport hormones. C) They take excess fluid back to the circulation. D) They produce blood cells. Show Answer Correct Answer: C) They take excess fluid back to the circulation. 59. This element of the blood help destroy disease germs that enter the body A) Platelets. B) White blood cells. C) Plasma. D) Red blood cells. Show Answer Correct Answer: B) White blood cells. 60. What does blood transport? A) Nutrients. B) Oxygen. C) Carbon Dioxide. D) Nutrients, oxygen and carbon dioxide. Show Answer Correct Answer: D) Nutrients, oxygen and carbon dioxide. ← 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