This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 202 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 202 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Heart transports blood to the body in A) 20secs. B) 30 seconds. C) 60 seconds. D) 40 secs. Show Answer Correct Answer: A) 20secs. 2. If I'm checking my pulse for 30 seconds and I count 25 beats, what is my heart rate? A) 50. B) 25. C) 75. D) 30. Show Answer Correct Answer: A) 50. 3. In pulmonary circulation, blood flows through 2 organs, the ..... ? A) Brain and heart. B) Heart and kidneys. C) Heart and liver. D) Lungs and heart. Show Answer Correct Answer: D) Lungs and heart. 4. Veins are thin-walled and floppy blood vessels. Which of the following is the function of veins? A) They carry oxygen-rich blood from the heart to the body parts. B) They carry oxygen-rich blood from the body parts back to the heart. C) They carry oxygen-poor blood from the body parts to the heart. D) They carry oxygen-poor blood from the heart to the body parts. Show Answer Correct Answer: C) They carry oxygen-poor blood from the body parts to the heart. 5. What happens when we exhale (breathe out)? A) The diaphragm contracts and moves upwards. B) The diaphragm relaxes and moves upwards. C) The diaphragm relaxes and moves downwards. D) None of above. Show Answer Correct Answer: B) The diaphragm relaxes and moves upwards. 6. The primary consumers in a marine ecosystem. A) Phytoplankton. B) Apex Predators. C) Tertiary Consumers. D) Zooplankton. Show Answer Correct Answer: D) Zooplankton. 7. I am the side of your heart that pumps oxygenated blood out through your arteries. A) Right Side of the Heart. B) Left Side of the Heart. Show Answer Correct Answer: A) Right Side of the Heart. 8. The closing of the semilunar valves creates the ..... sound. A) DUBB. B) FLUB. C) Snub. D) Lubb. Show Answer Correct Answer: A) DUBB. 9. What are the structures that separate the atria and ventricles? A) Valves. B) Veins. Show Answer Correct Answer: A) Valves. 10. How is the small intestine related to plasma A) It is not related. B) It is in the circulatory system. C) It helps bring nutrients to the body. D) None of the above. Show Answer Correct Answer: C) It helps bring nutrients to the body. 11. After a long day of work, John feels his legs are heavy and tired. He knows that this sensation is because a certain type of vessel is working hard to carry blood back TO his heart. Which vessel is it? A) Vein. B) Muscle. C) Artery. D) Nerve. Show Answer Correct Answer: A) Vein. 12. Causes the blood vessel to constrict during the blood clotting process A) Serotonin. B) Thrombin. C) Erythropoietin. D) Hemoglobin. Show Answer Correct Answer: A) Serotonin. 13. Which are the main organs in the respiratory system? A) Liver. B) Nasal cavity. C) Lungs. D) Trachea. Show Answer Correct Answer: C) Lungs. 14. Which blood vessel creates a pulse that we can track? A) Blood. B) Capillaries. C) Veins. D) Arteries. Show Answer Correct Answer: D) Arteries. 15. High blood pressure. * Normal pressure:120/80 mm Hg * Hypertension:> 140/90 mm Hg A) Hypertension. B) Atherosclerosis. C) Heart attack. D) None of above. Show Answer Correct Answer: A) Hypertension. 16. Lymphocytes produce histamine and heparin. A) False. B) True. Show Answer Correct Answer: A) False. 17. The liquid component of the circulatory system that transports nutrients and oxygen to the different parts of the body is? A) Ventricles. B) Blood. C) Blood Vessels. D) Heart. Show Answer Correct Answer: B) Blood. 18. A small blood vessel that transports nutrients and gases between the blood and tissues in an animal. A) Artery. B) Vein. C) Ventricle. D) Capillary. Show Answer Correct Answer: D) Capillary. 19. These are blood vessels that bring blood towards the heart. A) Chicken nuggets. B) Lungs. C) Veins. D) Capillaries. Show Answer Correct Answer: C) Veins. 20. Blood group B can donate blood to..... Blood group B can donate blood to..... A) A, AB. B) B, AB. C) AB only. D) A, B, AB and O. Show Answer Correct Answer: B) B, AB. 21. The ..... is the strong muscle which pumps blood throughout your body. A) Pericardium. B) Heart. C) Sternum. D) Diaphragm. Show Answer Correct Answer: B) Heart. 22. What consists of the heart, blood vessels, and blood and links all parts of your body? A) Nervous System. B) Respiratory System. C) Skeletal System. D) Cardiovascular System. Show Answer Correct Answer: D) Cardiovascular System. 23. Histologic layer of the heart composed of loose connective tissue lined externally by mesothelium. A) Endocardium. B) Myocardium. C) Epicardium. D) None of above. Show Answer Correct Answer: C) Epicardium. 24. We breath in or inhale fresh air that is rich in ..... A) Carbon dioxide. B) Hydrogen. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) Oxygen. 25. Oxygen-poor blood enters (BLANK) atrium, then (BLANK) ventricle A) 1. Left 2. Left. B) 1. Left2. Right. C) 1. Right 2. Left. D) 1. Right2. Right. Show Answer Correct Answer: D) 1. Right2. Right. 26. What is the correct sequence for blood being pumped from the heart to the lungs? A) Right atrium $\rightarrow$ right ventricle $\rightarrow$ pulmonary artery. B) Left atrium $\rightarrow$ left ventricle $\rightarrow$ pulmonary vein. C) Right atrium $\rightarrow$ right ventricle $\rightarrow$ pulmonary vein. D) Left atrium $\rightarrow$ left ventricle $\rightarrow$ pulmonary artery. Show Answer Correct Answer: A) Right atrium $\rightarrow$ right ventricle $\rightarrow$ pulmonary artery. 27. A. Oxygen-poor blood is received by the right atrium. B. Oxygen-rich blood will now be distributed to the different parts of the body. C. It will go to the lungs to pick up oxygen. D. It will pass by the right ventricle. E. It will pass by the left ventricle F. Oxygen-rich blood from the lungs will be received by the left atrium. A) A D C F E B. B) A B C D E F. C) D C F E B A. D) F C E D A B. Show Answer Correct Answer: A) A D C F E B. 28. The body pumps blood through the circulatory system so that it can deliver what to all the parts of the body? A) Snacks. B) Respiration. C) Oxygen. D) Platelets. Show Answer Correct Answer: C) Oxygen. 29. Does the Circulatory System eliminate waste A) Yes. B) No. Show Answer Correct Answer: A) Yes. 30. Which of the following fights infection? A) White blood cells. B) Plasma. C) Platelets. D) Red Blood cells. Show Answer Correct Answer: A) White blood cells. 31. The blood vessels that connect the ends of the smallest arteries with the ends of the veins are..... A) Arteries. B) Capillary. C) Aorta. D) The vein. E) Vena. Show Answer Correct Answer: B) Capillary. 32. The respiratory system has how many parts? A) 4. B) 3. C) 8. D) 12. Show Answer Correct Answer: B) 3. 33. The second heart sound occurs when the ..... valves close. A) Tricuspid. B) OF. C) Bicuspid. D) Semilunar. E) Mitral. Show Answer Correct Answer: D) Semilunar. 34. When we breathe out, the ..... leaves our lungs. A) Carbon dioxide. B) Oxygen. Show Answer Correct Answer: A) Carbon dioxide. 35. What does our circulatory system carry to all parts of our bodies? A) Ill. B) Nutrients. C) Oxygen. D) Nutrients and Oxygen. Show Answer Correct Answer: D) Nutrients and Oxygen. 36. If the volume of a cell increases when it is placed in a solution, that solution is said to be ..... to the cell A) Subatomic. B) Hypotonic. C) Isotonic. D) Hypertonic. Show Answer Correct Answer: B) Hypotonic. 37. All of the following contain oxygenated blood except: A) Left ventricle. B) Aorta. C) Pulmonary veins. D) Right ventricle. Show Answer Correct Answer: D) Right ventricle. 38. Its pump bloodstrong muscle A) Heart. B) Brain. Show Answer Correct Answer: A) Heart. 39. Characterized by too much production of white blood cells in the blood A) Anemia. B) Arteriosclerosis. C) Varicose veins. D) Leukemia. Show Answer Correct Answer: D) Leukemia. 40. What is NOT a layer of a blood vessel? A) Hard tunic. B) Tunica media. C) External tunic. D) Intimate tunic. Show Answer Correct Answer: A) Hard tunic. 41. Chamber of the heart that is responsible for pumping low oxygen blood to the lungs. A) Left Ventricle. B) Right Ventricle. C) Left Atrium. D) Right Atrium. Show Answer Correct Answer: B) Right Ventricle. 42. Most veins carries deoxygenated blood back to the heart ....., carries oxygen-rich blood from the lungs. A) Aorta. B) Pulmonary veins. C) Capillaries. D) Pulmonary arteries. Show Answer Correct Answer: B) Pulmonary veins. 43. Which level of organization is a heart at? A) Organ. B) Organ System. C) Cell. D) Tissue. Show Answer Correct Answer: A) Organ. 44. The AV node causes A) Atrial contraction. B) Atrial relaxation. C) Ventricular relaxation. D) Ventricular Contraction. Show Answer Correct Answer: D) Ventricular Contraction. 45. Ava, Abigail, and Lily are comparing their heart rates during a biology class. How many times does the average human heart beat per minute? A) 90 to 120 times. B) 120 to 150 times. C) 30 to 60 times. D) 60 to 90 times. Show Answer Correct Answer: D) 60 to 90 times. 46. A mass of nervous tissue responsible for sending electrical signals to the heart to cause it to contract is the A) Nucleus. B) Switch. C) Sinoatrial node. D) Septum. Show Answer Correct Answer: C) Sinoatrial node. 47. What is attached to red blood cells that make it red in color? A) Iron. B) Nutrients. C) Carbon dioxide. D) Water. Show Answer Correct Answer: A) Iron. 48. The ..... of the heart is responsible for pumping blood to the body. * A) Right side. B) Atrium. C) Left ventricle. D) Right atrium. Show Answer Correct Answer: C) Left ventricle. 49. Which human system is responsible for delivering blood to organs? A) Skeletal. B) Muscular. C) Respiratory. D) Circulatory. Show Answer Correct Answer: D) Circulatory. 50. Which of the following is an accessory organ? A) Stomach. B) Small Intesting. C) Liver. D) Large Intestine. Show Answer Correct Answer: C) Liver. 51. Which hormone regulates the RBC production in our body A) Adrenaline. B) Erythropoietin. C) Iron. D) Erythromycin. Show Answer Correct Answer: B) Erythropoietin. 52. Your heart beats faster when you exercise. A) False. B) True. Show Answer Correct Answer: B) True. 53. What does the Ventricle mean? A) Entrance hall. B) Little hall. C) Little belly. D) None of above. Show Answer Correct Answer: C) Little belly. 54. Which one is the main organ of the circulatory system? A) Heart. B) Lungs. C) Stomach. D) None of these. Show Answer Correct Answer: A) Heart. 55. Cell fragments that help clot the blood A) Arteries. B) Veins. C) Platelets. D) Capillaries. Show Answer Correct Answer: C) Platelets. 56. Which two body systems interact to carry out gas exchange? A) Digestive and Respiratory. B) Circulatory and Muscular. C) Circulatory and Respiratory. D) Muscular and Skeletal. Show Answer Correct Answer: C) Circulatory and Respiratory. 57. The muscle that contracts and relaxes tomoves air in and out of the lungs A) Diaphragm. B) Lungs. C) Bronchi. D) Nose. Show Answer Correct Answer: A) Diaphragm. 58. Which is true about plasma? A) Plasma is the solid portion of blood. B) Plasma is the liquid portion of blood. C) Plasma is red in color. D) Plasma fights infections and pathogens. Show Answer Correct Answer: B) Plasma is the liquid portion of blood. 59. Which type of blood travels to the body cells? A) Deoxygenated. B) Oxygenated. C) Both. D) Neither. Show Answer Correct Answer: B) Oxygenated. 60. What contains hemoglobin which carries both oxygen and carbon dioxide ( give blood its red color), have a disc-shape, and no nucleus? A) Thrombocytes. B) Leukocytes. C) Erythrocytes. D) Plasma. Show Answer Correct Answer: C) Erythrocytes. ← 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