This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 174 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 174 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Blood, when spun in a centrifuge, will separate into which components A) Hormones, plasma, platelets. B) White blood cells, red blood cells, somatic cells. C) Plasma, buffy layer, red blood cells. D) Red blood cells, neurons, cilia. Show Answer Correct Answer: C) Plasma, buffy layer, red blood cells. 2. A hollow muscular organ that pumps the blood through the circulatory system by rhythmic beats A) Capillaries. B) Heart. C) Circulatory System. D) Veins. Show Answer Correct Answer: B) Heart. 3. Which organ do red blood cells collect oxygen from? A) Liver. B) Lungs. C) Kidney. D) Heart. Show Answer Correct Answer: B) Lungs. 4. Type of cancer that causes the production of too many (or abnormal) white blood cells A) Sickle cell anemia. B) Leukemia. C) Heart attack. D) Hemophilia. Show Answer Correct Answer: B) Leukemia. 5. The vessel that allows material exchange to take place between body cells and itself. A) Arteries. B) Veins. C) Capillaries. D) Venules. Show Answer Correct Answer: C) Capillaries. 6. A red blood cell has a large nucleus and it is thicker near the center of the cell and thin around the rim of the cell. A) True. B) False. Show Answer Correct Answer: B) False. 7. Another name for the back of the throat is called the ..... A) Larynx. B) Pharynx. C) Nasopharynx. D) Trachea. Show Answer Correct Answer: B) Pharynx. 8. What is the sound the heart makes? A) The Black. B) Black-Black. C) Sub-Sub. D) None of above. Show Answer Correct Answer: A) The Black. 9. When considering the elements found within blood. Which would be most useful for a patient suffering from a particular disease A) White blood cells. B) Plasma. C) Platelets. D) Water. E) Red blood cells. Show Answer Correct Answer: A) White blood cells. 10. Hemoglobin (hgb) is a protein seen in: A) RBC (erythrocytes). B) WBC (leukocytes). C) Platelets. D) Plasma. Show Answer Correct Answer: A) RBC (erythrocytes). 11. If one person's BP is 140/90, the person suffers with the condition..... That means A) Hypotension Hypotension. B) Hypertension Hypertension. C) Both. D) None is none. Show Answer Correct Answer: B) Hypertension Hypertension. 12. The pacemaker region of the heart is responsible for A) Separating oxygenated from deoxygenated blood. B) Preventing blood from flowing backwards. C) Setting the rate at which the heart beats through electrical signals. D) Increasing and decreasing blood pressure. Show Answer Correct Answer: C) Setting the rate at which the heart beats through electrical signals. 13. What does pericardial cavity contain? A) Fluid reducing friction. B) Fluid increasing friction. C) Nothing. D) Both of these. Show Answer Correct Answer: A) Fluid reducing friction. 14. Which is not a function of the respiratory system? A) It warms air entering the body. B) It exchanges oxygen and carbon dioxide. C) It pumps blood to the organs. D) It creates sound through the voice box. Show Answer Correct Answer: C) It pumps blood to the organs. 15. When the Ventricle is ..... the Atrium chamber is ..... A) Resting; Resting. B) Empty; Full. C) Full; Full. D) Pumpling; Resting. Show Answer Correct Answer: D) Pumpling; Resting. 16. What does WBC stand for A) White blood cells. B) While breathing continually. C) Wide brain contraction. D) Wilted blood cavity. Show Answer Correct Answer: A) White blood cells. 17. Choose the characteristics of arteries ..... A) Have very thick, strong, elastic walls. B) Have thin walls, made up of onlyone layer of cells. C) Have thinner walls, large space inside the vessel. D) None of above. Show Answer Correct Answer: A) Have very thick, strong, elastic walls. 18. Identify the statement that is FALSE: A) The heart is made of muscle. B) Valves keep blood from flowing into previous chambers. C) Arteries carry blood away from the heart. D) The heart contains 6 chambers. Show Answer Correct Answer: D) The heart contains 6 chambers. 19. What happens to the carbon dioxide when we breath? A) It transforms into oxygen. B) Is removed from the body. C) Nothing, only oxygen is involved. D) Is transferred to the blood. Show Answer Correct Answer: B) Is removed from the body. 20. Which is known as the voice box? A) Trachea. B) Pharynx. C) Bronchi. D) Larynx. Show Answer Correct Answer: D) Larynx. 21. What is the meaning of bicuspid? A) Three cusps. B) Two cups. C) Divided cusp. D) Two cusps. Show Answer Correct Answer: D) Two cusps. 22. Study the diagram and identify the PRODUCER. A) Hawk. B) Grasshopper. C) Grass. D) Mouse. Show Answer Correct Answer: C) Grass. 23. If fatty deposits form inside the coronary artery, the artery becomes A) Narrower. B) Wider. Show Answer Correct Answer: A) Narrower. 24. Also called as bicuspid valve A) Pulmonary valve. B) Tricuspid valve. C) Mitral valve. D) Aortic valve. Show Answer Correct Answer: C) Mitral valve. 25. Blood vessels with valves A) Veins. B) Septum. C) Arteries. D) Capillaries. Show Answer Correct Answer: A) Veins. 26. What is the function of red blood cells in the human body? A) Carrying oxygen. B) Producing antibodies. C) Fighting infections. D) Clotting blood. Show Answer Correct Answer: A) Carrying oxygen. 27. Which system allows blood to circulate through the body? A) Nervous. B) Respiratory. C) Circulatory. D) None of above. Show Answer Correct Answer: C) Circulatory. 28. The mitral valve is located within the A) Left Ventricle. B) Right Ventricle. C) Left Atrium & Left Ventricle. D) Right Pulmonary Valve. Show Answer Correct Answer: C) Left Atrium & Left Ventricle. 29. Normal human pulse rate is ..... beats per minute? A) 60-100. B) 100-120. C) 150-200. D) 40-60. Show Answer Correct Answer: A) 60-100. 30. What part of blood is responsible for fighting bacteria and viruses? A) White Blood Cells. B) Platelets. C) Red Blood Cells. D) Plasma. Show Answer Correct Answer: A) White Blood Cells. 31. Lola Connie's sphygmomanometer's reading is120/80mmHg. What does the 120mmHgreading indicate? A) White blood cell count. B) Red blood cell count. C) Diastolic pressure. D) Systolic pressure. Show Answer Correct Answer: D) Systolic pressure. 32. Antigens are proteins present on the surface of ..... A) Thrombocytes. B) Erythrocytes. C) Leucocytes. D) Plasma. Show Answer Correct Answer: B) Erythrocytes. 33. Heart Attack, Stroke & Atherosclerosis are examples of? A) Hypertension. B) Cardiovascular Diseases (CVD). C) Cholesterol. D) Respiratory Diseases. Show Answer Correct Answer: B) Cardiovascular Diseases (CVD). 34. Which blood vessel do CO2 rich RBC take to get from the heart to the lungs? A) Pulmonary Vein. B) Pulmonary Septum. C) Pulmonary Aorta. D) Pulmonary Artery. Show Answer Correct Answer: D) Pulmonary Artery. 35. Type of blood vessels taking blood to the heart A) Veins. B) Venules. C) Arteries. D) Capillaries. Show Answer Correct Answer: A) Veins. 36. The heart is composed of ..... chambers. A) 1. B) 2. C) 4. D) 3. Show Answer Correct Answer: C) 4. 37. Which body function is made possible by the fibrous bands stretched across the larynx? A) Swallowing. B) Breathing. C) Diffusion. D) Speech. Show Answer Correct Answer: D) Speech. 38. Pumps oxygenated blood around the body and deoxygenated blood towards the lungs A) Heart. B) Arteries. C) Veins. D) Capillaries. E) Circulatory system and its parts. Show Answer Correct Answer: A) Heart. 39. Blood is pumped to the lungs by the ..... side of the heart. A) Right. B) Left. Show Answer Correct Answer: A) Right. 40. What is the difference between a biotic factor and an abiotic factor? A) Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen. B) Biotic factors are living things and abiotic factors are non-living things. C) Biotic factors exist in an ecosystem, but abiotic factors do not. D) Biotic factors are non-living things and abiotic factors are living things. Show Answer Correct Answer: B) Biotic factors are living things and abiotic factors are non-living things. 41. The job of the red blood cell is to A) Fight infection. B) Deliver oxygen and discard carbon dioxide. C) Form scabs. D) None of above. Show Answer Correct Answer: B) Deliver oxygen and discard carbon dioxide. 42. Proportion by volume of the blood A) Hemoglobin. B) Hematocrit. C) Hemostasis. D) Hematization. Show Answer Correct Answer: B) Hematocrit. 43. What is the organ that allows the union between the Digestive system and the circulatory system? A) Mouth. B) Small intestine. C) Blood. D) Heart. Show Answer Correct Answer: B) Small intestine. 44. Which chamber of the heart contracts with the most force? A) Left atrium. B) Right ventricle. C) Left ventricle. D) Right atrium. Show Answer Correct Answer: C) Left ventricle. 45. What is circulated around the body with our blood? A) Nutrients. B) Oxygen. C) Hormones. D) All are correct answers. E) None of the given answers. Show Answer Correct Answer: D) All are correct answers. 46. In which of the following blood vessels does the diffuses of gases and nutrients occur? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 47. It gives a red color to the blood. Because of this color they are called erythrocytes, erythos in Greek for red and cyte pertains to cell A) White blood cells. B) Plasma. C) Hemoglobin. D) Red blood cells. Show Answer Correct Answer: C) Hemoglobin. 48. Your ..... is a muscle connected to the bottom of your lungs that helps your lungs expand and contract when you breathe. A) Esophagus. B) Alveoli. C) Trachea. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. 49. What is the color of veins in the model to indicate deoxygenation? A) Blue. B) Red. C) Yellow. D) Green. Show Answer Correct Answer: A) Blue. 50. This artery serves blood to most body cells and tissues A) Vena cava. B) Oops oops. C) Renal artery. D) Aorta. Show Answer Correct Answer: D) Aorta. 51. Which of the following is not part of the excretory system? A) Liver. B) Lungs. C) Skin. D) Heart. Show Answer Correct Answer: D) Heart. 52. Which of the following structures brings blood back from the lungs to the heart? A) Systemic Veins. B) Pulmonary Veins. C) Systemic Arteries. D) Pulmonary Artery. Show Answer Correct Answer: B) Pulmonary Veins. 53. What is the reagent used to check for the presence of vitamin C A) Benedicts reagent. B) Ethanol. C) DCPIP solution. D) Iodine solution. Show Answer Correct Answer: C) DCPIP solution. 54. Which layer makes up the LARGEST percentage of blood? A) Plasma. B) Erythrocytes. C) Buffy Layer. D) None of above. Show Answer Correct Answer: A) Plasma. 55. ..... are the largest blood vessel that carry deoxygenated blood back to the heart. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 56. The heart is muscular pump in the size of your ..... A) Fingers. B) Head. C) Fist. D) Foot. Show Answer Correct Answer: C) Fist. 57. A type of blood vessel that carries oxygen-rich blood AWAY from the heart to the rest of the body. A) Capillary. B) Artery. C) Heart. D) Vein. Show Answer Correct Answer: B) Artery. 58. Carries oxygen to the heart and takes carbon dioxide out A) White blood cells. B) Red blood cells. Show Answer Correct Answer: B) Red blood cells. 59. Somebody cooks meal every day. A) Active. B) Passive. Show Answer Correct Answer: A) Active. 60. Flow of blood to and from the tissues of the heart A) Coronary circulation. B) Blood pressure. C) Systemic circulation. D) Pulmonary circulation. Show Answer Correct Answer: A) Coronary circulation. ← 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