This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 134 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 134 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The circulatory system carries the needed materials oxygen and ..... to the body cells. A) Nutrients. B) Carbon Dioxide. C) Fibrin. D) Platelets. Show Answer Correct Answer: A) Nutrients. 2. These are tiny sacs in the lungs that are surrounded by capillaries. This is also where the gas exchange takes place (oxygen enters the bloodstream and carbon dioxide exits). A) Alveoli. B) Bronchioles. C) Respiratory. D) None of above. Show Answer Correct Answer: A) Alveoli. 3. What type of blood does the fish pump in its CS? A) Oxygenated blood. B) Deoxygenated blood. Show Answer Correct Answer: A) Oxygenated blood. 4. Blood circulation to the body (except lungs) and back A) Vascular. B) Arteries. C) Pulmonary. D) Systemic. Show Answer Correct Answer: D) Systemic. 5. Which of the following best describes an antigen? A) A protein on the surface of a red blood cell. B) A type of red blood cell. C) A protein that binds to foreign molecules, signaling the immune system to attack. D) None of above. Show Answer Correct Answer: A) A protein on the surface of a red blood cell. 6. How many layers of cells make up the wall of a capillary? A) 3. B) 1. C) 4. D) 2. Show Answer Correct Answer: B) 1. 7. What happens when we inhale (breathe in)? A) The external intercostal muscles contract and the ribcage is pulled upwards and inwards. B) The external intercostal muscles contract and the ribcage is pulled upwards and outwards. C) The internal intercostal muscles contract and the ribcage is pulled upwards and outwards. D) None of above. Show Answer Correct Answer: B) The external intercostal muscles contract and the ribcage is pulled upwards and outwards. 8. During a biology class, Benjamin, Ethan, and Michael were discussing the human body. They were curious about where the circulatory system gets oxygen from. Can you help them? A) Digestive system. B) Nervous system. C) Endocrine system. D) Respiratory system. Show Answer Correct Answer: D) Respiratory system. 9. Arteries carry oxygenated blood where? A) Toward the heart. B) Away from the heart. C) Near the heart. D) Into the heart. Show Answer Correct Answer: B) Away from the heart. 10. What is the correct order of blood flow through your heart and body? A) Right Atrium, Right Ventricle, Lungs, Left Atrium, Left Ventricle, Body. B) Right Atrium, Left Atrium, Body, Right Ventricle, Left Ventricle, Lungs. C) Left Ventricle, Left Atrium, Lungs, Right Ventricle, Right Atrium, Body. D) Right Ventricle, Right Atrium, Lungs, Left Ventricle, Left Atrium, Body. Show Answer Correct Answer: A) Right Atrium, Right Ventricle, Lungs, Left Atrium, Left Ventricle, Body. 11. Which blood vessels carry blood away from the heart at a high pressure? A) Veins. B) Arteries. C) Arterioles. D) Capillaries. Show Answer Correct Answer: B) Arteries. 12. This is not a cell, but the fluid that blood cells are carried in. A) Plasma. B) Red blood. C) White blood. D) Platelets. Show Answer Correct Answer: A) Plasma. 13. As capillaries leave each organ, they join to make ..... A) Vessels. B) Veins. C) Capillaries. D) Arteries. Show Answer Correct Answer: B) Veins. 14. Which list is in correct order from most simple to most complex? A) Cell, organ, tissue, organism, organ system. B) Organism, organ system, tissue, organ, cell. C) Cell, tissue, organ, organ system, organism. D) Organism, organ system, organ, tissue, cell. Show Answer Correct Answer: C) Cell, tissue, organ, organ system, organism. 15. Liquid part of the cell A) Capillaries. B) Plasma. C) Red Blood Cells. D) Platelets. Show Answer Correct Answer: B) Plasma. 16. The part of the blood that fights off harmful bacteria and viruses is called ..... A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: B) White blood cells. 17. Oxygenated blood will flow from the left atrium into the A) Aorta. B) Right atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 18. When a small blood vessel in your hand is cut open, which plays an active defense against possible diseases? A) Plasma. B) Platelets. C) Red blood cells. D) White blood cells. Show Answer Correct Answer: D) White blood cells. 19. What is located in the larynx? A) The larynx hold the wind pipe. B) The larynx holds the vocal chords. C) The larynx holds the trachea. D) The larynx holds the whole respitory system. Show Answer Correct Answer: B) The larynx holds the vocal chords. 20. What are the steps of the digetive process? A) Digestion in the small intestine, chewing, in the stomach, absorption and waste elimination. B) Chewing, digestion in the stomach, digestion in the small intestine, absorption and waste elimination. C) Chewing, digestion in the stomach, waste elimination, absoption and digestion in the small intestine. D) None of above. Show Answer Correct Answer: B) Chewing, digestion in the stomach, digestion in the small intestine, absorption and waste elimination. 21. Which blood component is responsible for the clotting of your blood to prevent bleeding? A) White Blood Cells. B) Platelets. C) Red Blood Cells. D) Plasma. Show Answer Correct Answer: B) Platelets. 22. How do white blood cells compare to red blood cells? A) WBCs contain more oxygen than RBCs. B) There are more WBCs than RBCs. C) WBCs are smaller than RBCs. D) WBCs are bigger than RBCs. Show Answer Correct Answer: D) WBCs are bigger than RBCs. 23. What can happen if there is an atrial septal defect in the heart? A) Oxygen-rich blood mixes with oxygen-poor blood. B) Increased heart rate. C) Improved blood circulation. D) Decreased blood pressure. Show Answer Correct Answer: A) Oxygen-rich blood mixes with oxygen-poor blood. 24. Third part of Cardiac Conduction System:This structures branches down from septum and out towards each ventricle. They *relay* the signal to the Purkinje fibers. A) Bundle of His. B) Atrioventricular (AV) node. C) Sinoatrial (SA) Node. D) Purkinje fibers. Show Answer Correct Answer: A) Bundle of His. 25. Which of the following componet of blood cells are larger? A) RBC. B) WBC. Show Answer Correct Answer: B) WBC. 26. The drawing in of breath; inhalation. A) Inspiration. B) Expiration. Show Answer Correct Answer: A) Inspiration. 27. The correct order of the layers of the heart from outer to inner side is? A) Endocardium-myocardium-pericardium. B) Myocardium-epicardium-endocardium. C) Epicardium-myocardium-endocardium. D) Epicardium-endocardium-myocardium. Show Answer Correct Answer: C) Epicardium-myocardium-endocardium. 28. What is the largest blood vessel in the body? A) Septum. B) Left atrium. C) Aorta. D) None of above. Show Answer Correct Answer: C) Aorta. 29. Humans have a ..... circulatory system, meaning that blood is pumped through a series of veins and arteries. A) Open. B) Closed. C) Feedback. D) Circular. Show Answer Correct Answer: B) Closed. 30. The organ system that provides the body with oxygen and rid the body of carbon dioxide. A) Trachea. B) Respiratory System. C) Circulatory System. D) Arteries. Show Answer Correct Answer: B) Respiratory System. 31. How many 02 molecules can a single hemoglobin molecule carry at one time? A) 1. B) 4. C) 50. D) Thousands. Show Answer Correct Answer: B) 4. 32. Which blood type would only have Rh and B antibodies flowing through blood plasma? A) B+. B) B-. C) A+. D) A-. Show Answer Correct Answer: D) A-. 33. Which of the following best described livor mortis? A) It is the cooling of the body after death. B) It is the stiffening of the muscles after death. C) It is the pooling of blood after death. D) It is the warming of the body after death. Show Answer Correct Answer: C) It is the pooling of blood after death. 34. These structures aid in spreading contraction signal to ventricles: A) IN Bundles. B) Nodal groups. C) AV Bundles. D) Heart Murphs. Show Answer Correct Answer: C) AV Bundles. 35. The blood releases ..... to the lungs. A) Carbon dioxide. B) Blood. C) Oxygen. D) Nutrients. Show Answer Correct Answer: A) Carbon dioxide. 36. The nob on the bottom part of the brain where balance and coordination are controlled is called the ..... A) Cerebellum. B) Cerebrum. C) Brain stem. D) None of above. Show Answer Correct Answer: A) Cerebellum. 37. Which of the following % is correct for the transportation of Carbon Dioxide as bicarbonate ions A) 70%. B) 97%. C) 22%. D) 8%. Show Answer Correct Answer: A) 70%. 38. The valve in the heart which guards the opening between the right auricle and the right ventricle is: A) Tricuspid valve. B) Bicuspid valve. C) Aortic semilunar valves. D) Pulmonary semilunar valves. Show Answer Correct Answer: A) Tricuspid valve. 39. Which vein brings the blood from the lower half of the body? A) Aorta. B) Cartitod artery. C) Inferior vena cava. D) Superior vena cava. Show Answer Correct Answer: C) Inferior vena cava. 40. The organs together form the ..... A) Skeletal system. B) Organ system. C) Circulatory system. D) None of above. Show Answer Correct Answer: B) Organ system. 41. What is the name of the artery that pumps blood from the heart to the rest of the body? A) Aorta. B) Prevents back flow of blood. C) Transport oxygenated blood to the heart. D) Right ventricle. Show Answer Correct Answer: A) Aorta. 42. How is carbon dioxide released from the body? A) When we exhale. B) When we sweat. C) When we inhale. D) When we urinate. Show Answer Correct Answer: A) When we exhale. 43. What is the name of the small flap of tissue that seals off the trachea during swallowing? A) Larynx. B) Alveoli. C) Epiglottis. D) Pharynx. Show Answer Correct Answer: C) Epiglottis. 44. A pacemaker adjusts the heart rate to correspond to the body's A) Need for carbon dioxide. B) Creation of waste products. C) Need for oxygen. D) Ability to fight disease. Show Answer Correct Answer: C) Need for oxygen. 45. What is the mixture of food and gastric juices in the stomach called? A) Enzymes. B) Chyme. C) Hydrochloric acid. D) Bolus. Show Answer Correct Answer: B) Chyme. 46. Which of the following BP readings can be classified as hypertension, stage 1? A) 116/78 mm Hg. B) 144/92 mm Hg. C) 120/80 mm Hg. D) 130/88 mm Hg. Show Answer Correct Answer: B) 144/92 mm Hg. 47. Cnidarians and flatworms use which mechanism to transport substances? A) Diffusion. B) A closed circulatory system. C) An open circulatory system. D) None of above. Show Answer Correct Answer: A) Diffusion. 48. The sac, or outside layer, that surrounds and protects the heart? A) Pericardium. B) Myocardium. C) Epicardium. D) Endocardium. Show Answer Correct Answer: A) Pericardium. 49. If an Rh-mother and Rh+ father conceive, which blood type of the baby would create a medical concern? A) O-. B) AB+. C) AB-. D) None of above. Show Answer Correct Answer: B) AB+. 50. ..... is (are) the smallest blood vessel (s). A) Veins. B) Heart. C) Arteries. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 51. Which organ removes waste from blood A) Kidney. B) Eyes. C) Lungs. D) Heart. Show Answer Correct Answer: A) Kidney. 52. The pulmonary artery carries blood from the ..... to the ..... A) Right/lungs. B) Left/atrium. C) Right/atrium. D) Left/lungs. Show Answer Correct Answer: A) Right/lungs. 53. What is the first step of homeostasis? A) Interphase. B) Pulse Phase. C) Coagulation Phase. D) Vascular Phase. Show Answer Correct Answer: D) Vascular Phase. 54. If you have an infection which type of blood cell increases A) Red. B) Platelets. C) White. D) Plasma. Show Answer Correct Answer: C) White. 55. ..... carry blood into the right atrium of the heart. A) Superior vena cava. B) Inferior vena cava. C) Aorta. D) Both a and b. Show Answer Correct Answer: D) Both a and b. 56. Where does the oxygen-poor blood from the body enter the heart? A) Left ventricle. B) Right atrium. C) Left atrium. D) Right ventricle. Show Answer Correct Answer: B) Right atrium. 57. What blood vessels carries (oxygenated) blood away from the heart to the rest of the body? A) Arteries. B) Ducts. C) Capillaries. D) Veins. Show Answer Correct Answer: A) Arteries. 58. What is the size of the heart? A) Pump the blood. B) They help the body fight infection. C) The size of an adult fist. D) Carries blood away from the heart. Show Answer Correct Answer: C) The size of an adult fist. 59. Veins take blood ..... the heart. A) Away. B) To. C) Upside down. D) None of above. Show Answer Correct Answer: B) To. 60. "Vessels of the vessels" A) Venules. B) Venous valves. C) Arteries. D) The vessel of vessels. Show Answer Correct Answer: D) The vessel of vessels. ← 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