This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System โ Quiz 68 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 68 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In which chamber of the heart does blood receive oxygen before being pumped to the rest of the body? A) Right ventricle. B) Right atrium. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: C) Left atrium. 2. Where the mouth and nasal passageways are joined. A) Nostrils. B) Alveoli. C) Pharynx. D) Bronchi. E) Lungs. Show Answer Correct Answer: C) Pharynx. 3. A chamber that pumps blood out of the heart. A) Septum. B) Atrium. C) Ventricles. D) Arteries. Show Answer Correct Answer: C) Ventricles. 4. When the heart ....., it pushes the blood into the arteries, to the rest of the body A) RELAXES. B) CONTRACTS. Show Answer Correct Answer: B) CONTRACTS. 5. The function of red blood cells is to carry ..... from the lungs to the body's cells. A) Water. B) Oxygen. C) Carbon dioxide. D) Sugar. E) Iron. Show Answer Correct Answer: B) Oxygen. 6. The sound lub in cardiac cycle arises by closure of ..... A) Tri and bi cuspid valves. B) Pulmonary valve. C) Aortic valve. D) All the above เฐชเฑเฐตเฐจเฑเฐจเฑ. Show Answer Correct Answer: A) Tri and bi cuspid valves. 7. The largest artery with respect to diameter: A) Aorta. B) Iliac. C) Subclavian artery. D) Jugular. Show Answer Correct Answer: A) Aorta. 8. Explain the role of the atria and ventricles in the heart's structure. A) The atria and ventricles have no specific roles in the heart's structure. B) The atria receive blood from the body and lungs, while the ventricles pump blood out of the heart to the body and lungs. C) The ventricles receive blood from the body and lungs. D) The atria pump blood out of the heart to the body and lungs. Show Answer Correct Answer: B) The atria receive blood from the body and lungs, while the ventricles pump blood out of the heart to the body and lungs. 9. The vessels with thick elastic walls made of smooth muscle tissue. A) Capillaries. B) Heart. C) Arteries. D) Veins. Show Answer Correct Answer: C) Arteries. 10. Does the heart stop beating while we are sleeping A) No. B) Don't know. C) No response. D) Yes. Show Answer Correct Answer: A) No. 11. ..... are thin-walled blood vessels that are more elastic than arteries. they carry blood back to the heart A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 12. What is the name of your Science teacher? A) Sunshine O. Viernes. B) Strike out. Vier r value s. C) Sunshine S. Viernez. D) Sunshine S. Viernes. Show Answer Correct Answer: D) Sunshine S. Viernes. 13. HEMOGLOBIN CONTAINS A) He. B) Fe. C) Already. D) Mg. Show Answer Correct Answer: B) Fe. 14. The ..... is/are responsible for assisting in the immune system's defense against pathogens. A) Plasma. B) White blood cells. C) Red blood cells. D) Platelets. Show Answer Correct Answer: B) White blood cells. 15. What do veins have to prevent the backflow of blood? A) Valves. B) Arteries. C) Capillaries. D) Chambers. Show Answer Correct Answer: A) Valves. 16. Which best describes the circulatory system? A) A system that is made up of the heart and brain and sends electrical signals throughout the body. B) A system of lymph and blood that delivers nutrients and removes waste from the body. C) A system of the brain and nerves that sends messages throughout the body. D) A system of the heart and blood that sends messages throughout the body. Show Answer Correct Answer: B) A system of lymph and blood that delivers nutrients and removes waste from the body. 17. What is the function of clotting factors? A) Forms a platelet plug. B) Results in clot retraction. C) Cause a series of chemical reactions to form fibrin. D) Acts as an enzyme. Show Answer Correct Answer: C) Cause a series of chemical reactions to form fibrin. 18. Receives freshly oxygenated blood from the left ventricle & then branches into the systemic arteries carrying blood to the tissues- A) Thoracic arch. B) Aortic arch. C) Aorta. D) Venules. Show Answer Correct Answer: C) Aorta. 19. What type of protein is carried by red blood cells? A) Random stuff. B) Hemoglobin. C) Erythrocyte. D) Or all of the above. Show Answer Correct Answer: B) Hemoglobin. 20. The atrioventricular valves (AV) are the A) Tricuspid and Bicuspid Valves. B) Tricuspid and Pulmonary Valves. C) Bicuspid and Aortic Valves. D) Pulmonary and Aortic Valves. Show Answer Correct Answer: A) Tricuspid and Bicuspid Valves. 21. What is NOT a function of the lymphatic system? A) Filters dead cells from tissue fluid. B) Absorb tissue fluid. C) Transport fats to circulatory system. D) Absorbs fats from digestive system. E) Makes bone marrow. Show Answer Correct Answer: E) Makes bone marrow. 22. Muscle that pushes blood through the cardiovascular system.* A structure called septum divides the left and right side of the heart.*Has 4 chambers:two upper called atria and two lower called ventricles. A) Heart. B) Blood vessels. C) Blood. D) None of above. Show Answer Correct Answer: A) Heart. 23. Veins carry oxygen poor blood ..... the heart. A) Away from. B) Towards. Show Answer Correct Answer: B) Towards. 24. There are over 60, 000 miles of ..... in the human body. A) Blood vessels. B) Arteries. C) Capillaries. D) Veins. Show Answer Correct Answer: A) Blood vessels. 25. Why is the digestive system important? A) It transports blood that cells need. B) It provides oxygen that cells need. C) It provides nutrients that cells need to produce energy. D) It carries carbon dioxide and oxygen away from the body. Show Answer Correct Answer: C) It provides nutrients that cells need to produce energy. 26. The term "Pulmonary" relates to the ..... A) Kidneys. B) Lungs. C) Liver. D) Brain. Show Answer Correct Answer: B) Lungs. 27. How much amount of water is in plasma A) 86%. B) 90%. C) 75%. D) 96%. Show Answer Correct Answer: B) 90%. 28. De-oxygenated blood is first received in the A) Right atrium. B) Left atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: A) Right atrium. 29. Movement of blood from the heart] to the rest of the body, excluding lungs A) Pulmonary Circulation. B) Coronary Circulation. C) Systematic Circulatic. D) None of above. Show Answer Correct Answer: C) Systematic Circulatic. 30. Red blood cells contain a protein called ....., which carries oxygen. White blood cells aid in protecting the body from foreign pathogens. Platelets initiate blood clotting. A) Plasma. B) Cytoplasm. C) Antibody. D) Hemoglobin. Show Answer Correct Answer: D) Hemoglobin. 31. If a person's blood pressure reading is 120/80, the "120" indicates the pressure during ..... and the "80" indicates the pressure during ..... A) Upper:lower. B) Higher:lower. C) Systole:diastole. D) Both a and b. Show Answer Correct Answer: C) Systole:diastole. 32. Arterioles are..... A) A strange form of donut. B) Small arteries. C) Arteries that exist in the kidney. D) Arteries that supply blood to the heart muscle. Show Answer Correct Answer: B) Small arteries. 33. Which is a function of the cardiovascular system? A) To eliminate waste from the body. B) To move water throughout the body. C) To provide structural support for the body. D) To transport gases throughout the body. Show Answer Correct Answer: D) To transport gases throughout the body. 34. Your heart is made up of what type of muscle? A) Cardiac. B) Smooth. C) Vein. D) Artery. Show Answer Correct Answer: A) Cardiac. 35. They connect arteries and veins A) The lungs. B) The capillaries. C) Circulatory system. D) The heart. Show Answer Correct Answer: B) The capillaries. 36. What is the division of the motor division of the PNS that is responsible for controlling activities that are involuntary or not under conscious control? A) Peripheral Nervous System. B) Somatic Nervous System. C) Autonomic Nervous System. D) Sympathetic Nervous System. Show Answer Correct Answer: C) Autonomic Nervous System. 37. Which is a major blood vessel that transports blood into the heart itself? A) Pulmonary veins. B) Coronary veins. C) Septum. D) Coronary artery. Show Answer Correct Answer: D) Coronary artery. 38. Which disorder is characterized by misshapen red blood cells? A) Hemophilia. B) Heart Attack. C) Sickle Cell Anemia. D) Atherosclerosis. Show Answer Correct Answer: C) Sickle Cell Anemia. 39. What type of blood enters the superior vena cava? A) Deoxygenated blood. B) Oxygenated blood. Show Answer Correct Answer: A) Deoxygenated blood. 40. A group of similar cells is called ..... A) Organs. B) System. C) Tissue. D) None of above. Show Answer Correct Answer: C) Tissue. 41. Where is the heart? A) Under your chest. B) In your stomach. C) Under your chest, slightly to the left. D) Under your chest, slightly to the right. Show Answer Correct Answer: C) Under your chest, slightly to the left. 42. What is the role of white blood cells in your blood? A) Provide immunity. B) Maintain blood pressure. C) Clot blood. D) Carry oxygen. Show Answer Correct Answer: A) Provide immunity. 43. The flow of blood to all tissues in the body, except the lungs and heart, is called ..... A) Coronary circulation. B) High blood pressure. C) Systemic circulation. D) Pulmonary circulation. Show Answer Correct Answer: C) Systemic circulation. 44. What is the function of the valve in the blood vessels? A) Allow rapid gaseous and chemical exchange between blood and cell by diffusion. B) Transport blood from heart to tissues. C) Prevent backflow of blood. D) Transport blood from tissue to heart. Show Answer Correct Answer: C) Prevent backflow of blood. 45. What is happening during Systole? A) Ventricles are contracting. B) Ventricles are relaxing. Show Answer Correct Answer: A) Ventricles are contracting. 46. Reduces friction between the parietal and visceral pericardium during contraction. A) Serous fluid. B) Serous pericardium. C) Fibrous pericardium. D) Pericardial fluid. Show Answer Correct Answer: D) Pericardial fluid. 47. What are platelets responsible for? A) Fighting diseases and infections. B) Carrying oxygen to the body. C) Clot/Join together to stop bleeding. D) Carrying signals to the brain. Show Answer Correct Answer: C) Clot/Join together to stop bleeding. 48. Blood vessels that carry blood away from the heart called ..... A) Arteries. B) Capillaries. C) Heart. D) Blood. Show Answer Correct Answer: A) Arteries. 49. These blood vessels carry blood back to the heart. A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: C) Veins. 50. Waste products of respiration A) Respiratory system. B) Carbon dioxide and water. C) Alveoli. D) Larynx. Show Answer Correct Answer: B) Carbon dioxide and water. 51. After the right atrium, then the blood would pass through the A) Aortic valve. B) Right ventricle. C) Mitral valve. D) Tricuspid valve. Show Answer Correct Answer: D) Tricuspid valve. 52. About how big is the size of the human heart? A) Th size of your head. B) Th size of your foot. C) The size of your fist. D) The size of a quarter. Show Answer Correct Answer: C) The size of your fist. 53. Which one is NOT an example of a decomposer? A) Mushroom. B) Mold. C) Leaves. D) Worm. Show Answer Correct Answer: C) Leaves. 54. ..... receive the blood from the lungs through pulmonary veins. A) Right ventricle. B) Right atrium. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: C) Left atrium. 55. Pulmonary veins carry blood from the lungs and are the only veins in your body that: A) Carry oxygenated blood from the lungs. B) Carry iron in them. C) Carry liquid wastes. D) Get rid of deoxygenated blood into the lungs. Show Answer Correct Answer: A) Carry oxygenated blood from the lungs. 56. Which system breaks down food? A) Digestive. B) Excretory. C) Circulatory. D) Respiratory. Show Answer Correct Answer: A) Digestive. 57. The kidneys deal with ..... A) Solid waste. B) Saliva. C) Sweat. D) Liquid waste. Show Answer Correct Answer: D) Liquid waste. 58. What part of the heart has strong walls and is bigger? A) Atrium. B) Aorta. C) Ventricle. D) None of above. Show Answer Correct Answer: C) Ventricle. 59. Single Circulation is seen in ..... A) Humans. B) Frogs are bipedal. C) Reptilea are all reptiles. D) Fish. Show Answer Correct Answer: D) Fish. 60. Which way does liquid travel through 'Phloem'? A) Right. B) Left. C) Down. D) Up. Show Answer Correct Answer: C) Down. โ PreviousNext โRelated 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 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books