This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 86 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 86 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Diffusion of CO2 and O2 happens where? A) In the heart. B) In the Alveoli. C) In the pharynx and larynx. D) Not not occur in the respiratory system. Show Answer Correct Answer: B) In the Alveoli. 2. What is it called when the ventricle is beating irregularly? A) Atrial fibrillation. B) Ventricular fibrillation. C) Tachycardia. D) Bradycardia. Show Answer Correct Answer: B) Ventricular fibrillation. 3. What other body system does the circulatory system need to do its job? A) Respiratory. B) Nervous. C) Skeletal. D) Muscular. Show Answer Correct Answer: A) Respiratory. 4. A telescope is a device used to listen to the heart, intestines, lungs, & blood vessels? A) TRUE. B) FALSE. Show Answer Correct Answer: B) FALSE. 5. ..... transports sugar, proteins, and other organic materials. A) Spongy mesophyll. B) Stoma. C) Phloem. D) Xylem. Show Answer Correct Answer: C) Phloem. 6. The inner most layer or COVERING of the heart is called the A) Myocardium. B) Visceral pericardium. C) Parietal pericardium. D) Pericardium. Show Answer Correct Answer: B) Visceral pericardium. 7. What is low blood pressure called? A) Systolic pressure. B) Diastolic pressure. C) Hypertension. D) Hypotension. Show Answer Correct Answer: D) Hypotension. 8. The two reactants of cellular respiration are oxygen and glucose. A) True. B) False. Show Answer Correct Answer: A) True. 9. The correct order of blood flow in the large blood circulation..... A) Left room-whole body-right vestibule. B) Right room-whole body-left vestibule. C) Right chamber-lungs.-left vestibule. D) Left chamber-lungs-right atrium. Show Answer Correct Answer: A) Left room-whole body-right vestibule. 10. The patient notices that he has been bruising easily. Laboratory studies indicate that his blood clots very slowly. It is suspected that this patient might have what condition A) Sickle cell anemia. B) Leukemia. C) Hemophilia. D) A thrombus. Show Answer Correct Answer: C) Hemophilia. 11. Why are animals important to an ecosystem? A) They produce oxygen. B) They eat bacteria. C) They help break down dead plants. D) The produce carbon dioxide. Show Answer Correct Answer: D) The produce carbon dioxide. 12. What is the best way to maintain a healthy heart? A) Smoke regularly. B) Exercise daily and eat a balanced diet. C) Spend most of the day sitting. D) Eat fast food every day. Show Answer Correct Answer: B) Exercise daily and eat a balanced diet. 13. ) RBC has a nucleus and mitochondria2.) Can live for 120 days A) Both statements are true. B) Both statements are false. C) 1st statement is true, 2nd statement is false. D) 1st statement is false, 2nd statement is true. Show Answer Correct Answer: D) 1st statement is false, 2nd statement is true. 14. From the right ventricle the blood goes to the lungs through the ..... A) Pulmonary artery. B) Aorta. C) Pulmonary vein. D) None of above. Show Answer Correct Answer: A) Pulmonary artery. 15. The following are parts of the Respiratory system EXCEPT. A) Alveoli. B) Heart. C) Trachea. D) Lungs. Show Answer Correct Answer: B) Heart. 16. The coronary pathway of the circulatory system is used to A) Bring blood to and from the lungs. B) Bring blood to and from the body. C) Bring blood to and from the heart muscles. D) Bring blood to and from the brain. Show Answer Correct Answer: C) Bring blood to and from the heart muscles. 17. Blood cell that protect the body against infection A) Plasma. B) White Blood Cells. C) Hemoglobin. D) Platelets. E) Blood. Show Answer Correct Answer: B) White Blood Cells. 18. Are tubes that are lined with C-shaped cartilage rings that lead to the bronchi A) Pharynx. B) Bronchi. C) Trachea. D) Lungs. E) Alveoli. Show Answer Correct Answer: C) Trachea. 19. What are the gases that are exchanged in the lungs? A) Nitrogen and Oxygen. B) Water and Oxygen. C) Oxygen and Carbon Dioxide. D) Carbon Dioxide and Water. Show Answer Correct Answer: C) Oxygen and Carbon Dioxide. 20. Which of the following is the correct order of the intrinsic conduction system? A) AV NODE-SA NODE-BUNDLES OF HIS-PURKINJE FIBERS. B) AV NODE-SA NODE-PURKINJE FIBERS-BUNDLES OF HIS. C) SA NODE-AV NODE-PURKINJE FIBERS-BUNDLES OF HIS. D) SA NODE-AV NODE-BUNDLES OF HIS-PURKINJE FIBERS. Show Answer Correct Answer: D) SA NODE-AV NODE-BUNDLES OF HIS-PURKINJE FIBERS. 21. The organ which is domed shape located below the lungs and primary muscle used in respiration A) Bronchi. B) Heart. C) Diaphragm. D) Lungs. Show Answer Correct Answer: C) Diaphragm. 22. Which type of muscle tissue makes up the heart? A) Cardiac Muscle Tissue. B) Skeletal Muscle Tissue. C) Smooth Muscle Tissue. D) Carnivorous Muscle Tissue. Show Answer Correct Answer: A) Cardiac Muscle Tissue. 23. The three types of blood vessels are: A) Veins, arteries and capillaries. B) Veins, hearts and alveoli. C) Arteries, plasma and cells. D) None of above. Show Answer Correct Answer: A) Veins, arteries and capillaries. 24. What condition is happening when the heart cannot pump enough blood to meet the body's needs? A) Myocardial infarction. B) Hypertension. C) Congestive heart failure. D) Hemophilia. Show Answer Correct Answer: C) Congestive heart failure. 25. These have muscular walls: A) Capillaries. B) Venules. C) Veins. D) Arteries. Show Answer Correct Answer: D) Arteries. 26. What does the heart do in the double circulatory system? A) Pumping blood with carbon dioxide to the whole body. B) Pumping blood with oxygen to the whole body. C) Taking oxygen-rich blood to the lungs. D) Taking oxygen poor blood to the body. Show Answer Correct Answer: B) Pumping blood with oxygen to the whole body. 27. Why do we need a transport system? A) To overcome the lengthy diffusion distance problem. B) To increase the amount of waste produced. C) To reduce the energy needed to transport. D) To increase the types of substances transported at any time. Show Answer Correct Answer: A) To overcome the lengthy diffusion distance problem. 28. What color is used to represent oxygen-rich blood in the diagram? A) Red. B) Green. C) Blue. D) Yellow. Show Answer Correct Answer: A) Red. 29. Which is not a main function of the Lymphatic system? A) Aid in the absorption of fats. B) Help to maintain fluid balance in the body. C) Play an integral role in the bodies immune response. D) Return low oxygenated blood to the heart. Show Answer Correct Answer: D) Return low oxygenated blood to the heart. 30. In this type of circulatory system, blood bathes organs, tissues and cells. A) Closed. B) Open. Show Answer Correct Answer: B) Open. 31. What depolarizes after the AV Node? A) Bundle of his. B) Atrium. C) Purkinje fibers. D) Ventricle. Show Answer Correct Answer: A) Bundle of his. 32. What is "normal" blood pressure A) 120/110 mmHg. B) 140/80 mmHg. C) 120/80 mmHg. D) 100/80 mmHg. Show Answer Correct Answer: C) 120/80 mmHg. 33. Which chamber of the heart has the thickest muscle wall? A) Right atrium. B) Left ventricle. C) Left Atrium. D) Right ventricle. Show Answer Correct Answer: B) Left ventricle. 34. What is the device used to hear the heart beat? A) Otoscope. B) Stethoscope. C) Fundoscope. D) IPhone 13. Show Answer Correct Answer: B) Stethoscope. 35. Name the blood vessel that serves as the location for the exchange of gases and nutrients between blood and tissue cells. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 36. Statement below shows a blood circulatory system in an organism.Close, double and incomplete circulatory system.Which of the following organism represents the above statement? A) Frog. B) Rabbit. C) Grasshopper. D) Fish. Show Answer Correct Answer: A) Frog. 37. What are the agranulocytes? A) Platelets. B) Eosinophils and neutrophils. C) Lymphocytes and monocytes. D) Basophils and neutrophils. Show Answer Correct Answer: C) Lymphocytes and monocytes. 38. It is a strong muscle between the lungs A) The heart. B) The diaphragm. C) The bronchi. D) The trachea. Show Answer Correct Answer: A) The heart. 39. A blood clot that breaks free and drifts to another part of the body where it can lodge in a vessel in the brain or lungs is called a(n) ..... A) Hematoma. B) Heparin. C) Thrombus. D) Embolus. Show Answer Correct Answer: D) Embolus. 40. Which system shares the pharynx with the respiratory system? A) Skeletal. B) Digestive. C) Excretory. D) Circulatory. Show Answer Correct Answer: B) Digestive. 41. Which of the following structures makes the interior part of the heart? A) Pericardium. B) Endocardium. C) Myocardium. D) Epicardium. Show Answer Correct Answer: B) Endocardium. 42. Blood flows away from the heart through: A) Arteries. B) Pulmonary Vein. C) Superior Vena Cava. D) Veins. Show Answer Correct Answer: A) Arteries. 43. Are tubular passage ways of the blood A) Heart. B) Blood. C) Blood vessels. D) None of above. Show Answer Correct Answer: C) Blood vessels. 44. What is the name of the muscle below the lungs that helps with breathing? A) Trachea. B) Diaphragm. C) Alveoli. D) Bronchi. Show Answer Correct Answer: B) Diaphragm. 45. ) WBC is colorless and contains hemoglobin2.) regularly shaped and has no nucleus A) Both statements are true. B) Both statements are false. C) 1st statement is true, 2nd statement is false. D) 1st statement is false, 2nd statement is true. Show Answer Correct Answer: B) Both statements are false. 46. What happens during a stroke? A) The heart muscle is damaged due to lack of oxygen. B) A part of the brain loses blood supply, leading to the death of brain cells. C) The heart stops beating due to a problem in the electrical system. D) The heart beats irregularly due to a clogged artery. Show Answer Correct Answer: B) A part of the brain loses blood supply, leading to the death of brain cells. 47. Loose, protective membrane surrounding the heart A) Pericardium. B) Pericardial fluid. C) Epicardium. D) Myocardium. Show Answer Correct Answer: A) Pericardium. 48. Exchanges between blood and tissue cells occur in capillary beds. A) False. B) True. Show Answer Correct Answer: B) True. 49. The horse has what type of circulatory system? A) Single. B) Double. Show Answer Correct Answer: B) Double. 50. The large vein that carries deoxygenated blood into the heart from the upper body is the A) Aorta. B) Renal vein. C) Superior vena cava. D) Inferior vena cava. Show Answer Correct Answer: C) Superior vena cava. 51. Which of the following is a difference between cardiac muscle and skeletal muscle? A) Unlike skeletal muscle, cardiac muscle does not use a sliding filament mechanism for contraction. B) Unlike skeletal muscle cells, cardiac muscle cells can be autorhythmic. C) Unlike skeletal muscle cells, cardiac muscle cells do not rely on an influx of calcium ions for depolarization. D) Unlike skeletal muscle, cardiac muscle is not striated. Show Answer Correct Answer: B) Unlike skeletal muscle cells, cardiac muscle cells can be autorhythmic. 52. This system is known as the framework of the body. A) Musculoskeletal system. B) Integumentary system. C) Muscular system. D) Skeletal system. Show Answer Correct Answer: D) Skeletal system. 53. According to the image, what does oxygen bond with in red blood cells? A) Hemoglobin molecules. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: A) Hemoglobin molecules. 54. When the blood leaves the lungs it is full of ..... As the blood passes through the heart, and out through the ....., it is delivering oxygen to the cells throughout the body. Once the oxygen is delivered, the blood begins to pick up ..... In order for the blood to get back to the heart and lungs, it has to travel through the ..... A) Carbon dioxide, veins, oxygen, arteries. B) Oxygen, arteries, carbon dioxide, veins. Show Answer Correct Answer: B) Oxygen, arteries, carbon dioxide, veins. 55. Plasma is made mostly of this A) Water. B) Platelets. C) Blood. D) Cells. Show Answer Correct Answer: A) Water. 56. Name the part! This part gets pulled down and creates a vacuum allowing us to breathe ..... What am I? A) Pharynx. B) Diaphragm. C) Larynx. D) Lungs. Show Answer Correct Answer: B) Diaphragm. 57. When you exhale, the diaphragm A) Moves upwards. B) Moves downwards. C) Flattens. D) None of the above. Show Answer Correct Answer: A) Moves upwards. 58. What is the proper name for red blood cells? A) Haemoglobin. B) Leukocytes. C) Erythrocytes. D) Basophil. Show Answer Correct Answer: C) Erythrocytes. 59. This element of blood's job is to transport dissolved food and blood cells A) White blood cells. B) Red blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: C) Plasma. 60. -are only cell thick. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. ← 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