This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Biology > Circulatory System – Quiz 207 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 207 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... are narrow and very thin walled blood vessels A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 2. The smallest type of blood vessels are A) Aorta. B) Arteries. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 3. What is the role of the atria and ventricles in the heart? A) The atria receive blood into the heart, while the ventricles pump blood out of the heart to the rest of the body. B) The atria pump blood out of the heart, while the ventricles receive blood into the heart. C) The atria and ventricles both pump blood out of the heart. D) The atria and ventricles both receive blood into the heart. Show Answer Correct Answer: A) The atria receive blood into the heart, while the ventricles pump blood out of the heart to the rest of the body. 4. Which statement about capillaries is FALSE? A) They are numerous. B) They decrease surface area. C) They allow for blood cells to move in a single file. D) They are the blood vessel where gases and nutrients are exchanged. Show Answer Correct Answer: B) They decrease surface area. 5. True or False:The circulatory system delivers oxygen to body cells. A) False. B) True. Show Answer Correct Answer: B) True. 6. What is the function of your cappilaries? A) Carry blood to the heart. B) Carry blood to the lungs. C) Carry blood away from the heart. D) Connect the veins and arteries. Show Answer Correct Answer: D) Connect the veins and arteries. 7. The bundle of nerves that controls the heartbeat is called the ....., and it is in the ..... of the heart. A) AV node, Left Atrium. B) SA node, Right Atrium. C) AV node, Right Ventricle. D) SA node, Left Atrium. Show Answer Correct Answer: B) SA node, Right Atrium. 8. The vessel walls are thin and inelastic A) Venous Vessels (Back) [6]. B) Arteries (pulses) [6]. Show Answer Correct Answer: A) Venous Vessels (Back) [6]. 9. A vascular system disease involving hardening of the arteries is called ..... A) Arteriosclerosis. B) Athrosclerosis. C) Hemostatic retention. D) Vascular stenosis. Show Answer Correct Answer: A) Arteriosclerosis. 10. Which component of blood loses its nucleus? A) Hemoglobin. B) Platelets. C) White blood cells. D) Red blood cells. Show Answer Correct Answer: D) Red blood cells. 11. What is the part of the Digestive System that brings the food from the mouth to the stomach? A) Villi. B) Trachea. C) Alveoli. D) Esophagus. Show Answer Correct Answer: D) Esophagus. 12. Which is NOT a material carried in the blood? A) Nutrients. B) Wastes. C) Hormones. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 13. Which is the correct direction of blood flow? A) Right atrium-left atrium-pulmonary artery. B) Right atrium-right ventricle-pulmonary artery. C) Left ventricle-left atrium-aorta. D) Left ventricle-pulmonary artery-aorta. Show Answer Correct Answer: B) Right atrium-right ventricle-pulmonary artery. 14. Ml is the normal rate for..... A) Erythrocytes (red blood cells). B) Blood plasma. C) Thrombocytes (blood clots). D) Leukocytes (white blood cells). Show Answer Correct Answer: C) Thrombocytes (blood clots). 15. Which of the following is NOT a chamber of the heart? A) Left and Aorta. B) Left Atrium. C) Right Ventricle. D) Left Ventricle. Show Answer Correct Answer: A) Left and Aorta. 16. What is the role of the right side of the heart in circulation? A) Pump oxygen-rich blood to the body. B) Pump blood to the lungs. C) Connect arteries and veins. D) Prevent backflow. Show Answer Correct Answer: B) Pump blood to the lungs. 17. What is the pressure of blood against the walls of blood vessels when the heart is relaxing between beats? A) Diastolic pressure. B) Systolic pressure. Show Answer Correct Answer: A) Diastolic pressure. 18. The blood vessel connected to the left atrium is the ..... A) Pulmonary artery. B) Aorta. C) Vena Cava. D) Pulmonary vein. Show Answer Correct Answer: D) Pulmonary vein. 19. Where do the pulmonary arteries and veins travel to/from? A) The lungs. B) The liver. C) The eyes. D) The brain. Show Answer Correct Answer: A) The lungs. 20. What body system is responsible for transporting red blood cells throughout the body? A) Respiratory. B) Skeletal. C) Circulatory. D) Muscular. Show Answer Correct Answer: C) Circulatory. 21. A heart rate over 220 would be dangerous. A) True. B) False. Show Answer Correct Answer: A) True. 22. Which of the following is the correct order in which air moves through the human respiratory system when a person inhales? A) Nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli. B) Pharynx, nose, trachea, larynx bronchi, bronchioles, alveoli. C) Nose, larynx, trachea, bronchi, alveoli, bronchi. D) Pharynx, bronchi, nose, larynx, trachea, bronchioles, alveoli. Show Answer Correct Answer: A) Nose, pharynx, larynx, trachea, bronchi, bronchioles, alveoli. 23. What prevents the blood from going backward after it gets pumped by the heart? A) The ventricles. B) The atria. C) The septum. D) The valves. Show Answer Correct Answer: D) The valves. 24. Diffusion moves molecules in which direction? A) High concentration $\rightarrow$ high concentation. B) High concentration $\rightarrow$ low concentration. C) Low concentration $\rightarrow$ low concentration. D) Low concentration $\rightarrow$ high concentration. Show Answer Correct Answer: B) High concentration $\rightarrow$ low concentration. 25. The sound the heart makes A) The black. B) Arteriole. C) Capillary. D) Venule. Show Answer Correct Answer: A) The black. 26. The heart is constantly pumping and the blood flows in only one direction. A) False. B) True. Show Answer Correct Answer: B) True. 27. Type of cell that functions to stop bleeding: A) Platelet. B) Red blood cell. C) Leukocyte. D) White Blood Cell. Show Answer Correct Answer: A) Platelet. 28. The name for the circular movement of blood through the body is called A) Helping. B) Circulation. C) Budding. D) Fastening. Show Answer Correct Answer: B) Circulation. 29. Arteries travel away from the heart. A) False. B) True. Show Answer Correct Answer: B) True. 30. What term refers to an abnormally high WBC count A) Leukoplakia. B) Leukocytes. C) Leukocytosis. D) Leukopenia. Show Answer Correct Answer: C) Leukocytosis. 31. What is the main function of arteries in the circulatory system? A) Carry blood towards the heart. B) Thin walls. C) Carries blood away from the heart. D) Low pressure of blood. Show Answer Correct Answer: C) Carries blood away from the heart. 32. Capillaries are extremely thin blood vessels, which connect arteries and veins A) True. B) False. Show Answer Correct Answer: A) True. 33. Which type of vessel normally contains valves that prevent the backward flow of materials? A) Arteriole. B) Capillary. C) Vein. D) Artery. Show Answer Correct Answer: C) Vein. 34. Which blood vessel transports blood away from the heart? A) Superior vena cava. B) Inferior vena cava. C) Aorta. D) Pulmonary vein. Show Answer Correct Answer: C) Aorta. 35. The main purpose of white blood cells is to ..... A) Attack and destroy pathogens. B) Carry gases, wastes and nutrient. C) Clot the blood. D) Digest food. Show Answer Correct Answer: A) Attack and destroy pathogens. 36. Which of the following is defined as the internal medium of the body that gives life to the cells? A) WBC. B) RBC. C) Blood. D) Plasma. Show Answer Correct Answer: C) Blood. 37. True or False:Some multicellular organisms have no circulatory system. A) True. B) False. Show Answer Correct Answer: A) True. 38. Which of the following blood groups is that of the Universal Recipient ( receiver) A) AB. B) A. C) B. D) O. Show Answer Correct Answer: A) AB. 39. Which of the following veins has capillaries at both ends? A) Pulmonary Veins. B) Vena Cava. C) Hepatic Portal Veins. D) Renal Veins. Show Answer Correct Answer: C) Hepatic Portal Veins. 40. Which of the 3 blood vessels carries blood away from the heart? A) Artery. B) Vein. C) Capillary. D) None of above. Show Answer Correct Answer: A) Artery. 41. The pressure that is exerted by the blood against the walls of blood vessels A) Blood pressure. B) Coronary circulation. C) Pulmonary circulation. D) Systemic circulation. Show Answer Correct Answer: A) Blood pressure. 42. If a healthy person has 5000 white blood cells, how many white blood cells might a sick person have? A) 2000. B) 5000. C) 12, 000. D) None of above. Show Answer Correct Answer: C) 12, 000. 43. How many chambers does the mammalian heart have? A) 1. B) 4. C) 3. D) 2. Show Answer Correct Answer: B) 4. 44. Jobs of the circulatory system A) Remove oxygen and transport carbon dioxide to cells. B) Help us breathe and get rid of waste. C) Transport oxygen and remove carbon dioxide from cells. D) Help us digest our food and eliminate waste. Show Answer Correct Answer: C) Transport oxygen and remove carbon dioxide from cells. 45. A person who does not have the Rh protein is considered: A) Rh positive. B) Rh negative. C) Universal donor. D) Universal recipient. Show Answer Correct Answer: B) Rh negative. 46. Component of blood that contains water, enzymes, salt and nutrients. A) Red blood cell. B) Plasma. C) White blood cell. D) Platelets. Show Answer Correct Answer: B) Plasma. 47. How are angioplasty and using a stent different? One, some or all responses may be correct. A) A catheter (thin tube) is threaded through a small hole in the arm or leg. B) A balloon is inflated inside a blocked artery. C) Blood flow to the heart muscle is restored. D) A small mesh tube is involved when using a stent. Show Answer Correct Answer: D) A small mesh tube is involved when using a stent. 48. Which component of blood is responsible for transporting oxygen? A) Red Blood Cells (RBCs). B) White Blood Cells (WBCs). C) Plasma. D) Platelets. Show Answer Correct Answer: A) Red Blood Cells (RBCs). 49. The main artery that carries blood away from the heart A) Arteries. B) Veins. C) Aorta. D) Heart. Show Answer Correct Answer: C) Aorta. 50. Which chamber does blood leave as it flows toward the lungs? A) Right atrium. B) Left ventricle. C) Left atrium. D) Right ventricle. Show Answer Correct Answer: D) Right ventricle. 51. Why does an athletic person have a lower resting heart rate? A) Due to stronger heart muscle. B) Due to weakened heart muscle. C) Due to decreased cardiac output. D) Due to increased pulse rate. Show Answer Correct Answer: A) Due to stronger heart muscle. 52. Brings blood from the heart to all the other tissues and organs of the body, and then back to the heart. A) Systemic circulation. B) Cardiovascular circulation. C) Pulmonary circulation. D) Lymph vascular system. Show Answer Correct Answer: A) Systemic circulation. 53. What can you conclude about an erythrocyte that is bright red in color? A) It is fighting a pathogen. B) It is full of oxygen. C) It is helping heal a cut. D) None of above. Show Answer Correct Answer: B) It is full of oxygen. 54. What is a myocardial infraction? A) Angina. B) Arrhythmia. C) Heart attack. D) Stroke. Show Answer Correct Answer: C) Heart attack. 55. What part of a neuron is adapted to receiving a signal or detecting changes in the environment? A) The axon. B) The cell body. C) The nodes of Ranvier. D) The axon terminals. Show Answer Correct Answer: B) The cell body. 56. If blood has Antigen B and the A Antibody, what is its blood type? A) B. B) A. C) AB. D) O. Show Answer Correct Answer: A) B. 57. Which of these is not a component of the blood? A) Plasma. B) Erythrocytes. C) Carbon dioxide. D) Platelets. Show Answer Correct Answer: C) Carbon dioxide. 58. Carry blood away from the heart & to the rest of the body A) Capillaries. B) Aorta. C) Arteries. D) Veins. Show Answer Correct Answer: C) Arteries. 59. Ventricular contraction (systole) lasts A) 0.3 sec. B) 0.1 sec. C) 0.4 sec. D) 0.8 sec. Show Answer Correct Answer: A) 0.3 sec. 60. What are lipids (fats) broken down into A) Amino Acids. B) Glucose. C) Fatty acids and glycerol. D) Butter and Oil. Show Answer Correct Answer: C) Fatty acids and glycerol. ← 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