This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System โ Quiz 172 ๐ Homepage ๐ Download PDF Books ๐ Premium PDF Books Circulatory System Quiz 172 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The exchange of oxygen, nutrients, and carbon dioxide, and other body wastes happen in the ..... A) Arteries. B) Veins. C) Capillaries. D) Valve. Show Answer Correct Answer: C) Capillaries. 2. Located in the walls of the right atrium A) AV node. B) Action potentials. C) Atrioventricular Bundle. D) Aorta. E) Aorta. Show Answer Correct Answer: A) AV node. 3. Our blood brings ..... to all of our body cells. A) Nutrients. B) Waste. C) Oxygen. D) White Blood Cells. Show Answer Correct Answer: C) Oxygen. 4. Incompatibility of blood group causes A) Clotting of blood. B) Bleeding. C) Clogging of blood vessels. D) None of these. Show Answer Correct Answer: C) Clogging of blood vessels. 5. The RIGHT side of the heart pumps blood to which organ? A) Brain. B) Kidneys. C) Lungs. D) The Whole Body. Show Answer Correct Answer: C) Lungs. 6. When the diaphragm contracts and moves down, the lungs are ..... A) Expanding with air. B) Shrinking-pushing air out. Show Answer Correct Answer: A) Expanding with air. 7. Capillary means ..... 'capillary เฐ เฐจเฐเฐพ A) Hair. B) Tubule Tongue. C) Slide plate. D) None is none. Show Answer Correct Answer: A) Hair. 8. Heart beat rate in newborn baby..... A) 80-120. B) 100-150. C) 60-70. D) 40-60. Show Answer Correct Answer: B) 100-150. 9. The inner layer of the heart: A) Myocardium. B) Epicardium. C) Endocardium. D) Pericardium. Show Answer Correct Answer: C) Endocardium. 10. A profuse escape of blood from the vessels- A) Thrombosis. B) Hepatic arteries. C) Vasodilation. D) Hemorrhage. Show Answer Correct Answer: D) Hemorrhage. 11. How does blood carry waste products away from cells? A) Through the nervous system. B) Through the circulatory system. C) Through the digestive system. D) Through the respiratory system. Show Answer Correct Answer: B) Through the circulatory system. 12. The main organs of the circulatory system are protected by: A) Ribcage. B) Skull. C) Jaw. D) Spine. Show Answer Correct Answer: A) Ribcage. 13. What is the purpose of the circulatory system in the body? A) Deliver nutrients and oxygen to the cells. B) Remove waste from the cells. C) Regulate body temperature. D) All of these. Show Answer Correct Answer: D) All of these. 14. Which part of blood fights bacteria and viruses? A) Hemoglobin. B) Plasma. C) Lymphatic Fluid. D) White Blood Cells. Show Answer Correct Answer: D) White Blood Cells. 15. This component of the blood transports oxygen to all the organs in the body. A) Plasma. B) RBC. C) WBC. D) Platelets. Show Answer Correct Answer: B) RBC. 16. After cellular respiration, how does the body get rid of CO2? A) Transported to lungs for exhale. B) Transported to kidneys as waste. C) Transported to digestive system to become feces. D) Transported to skin to be lost as heat. Show Answer Correct Answer: A) Transported to lungs for exhale. 17. Blood is made up of ..... % blood cells. A) 45. B) 55. Show Answer Correct Answer: A) 45. 18. The main vein(s) that brings blood to the right atrium? A) Aorta. B) Pulmonary veins. C) Superior and Inferior vena cava. D) Jugular vein. Show Answer Correct Answer: C) Superior and Inferior vena cava. 19. An increase in blood vessel diameter causes arterial blood pressure to decrease. A) True. B) False. Show Answer Correct Answer: A) True. 20. Blood is part of which one of these systems A) Skeletal. B) Repsiratory. C) Digestive. D) Circulatory. Show Answer Correct Answer: D) Circulatory. โ PreviousNext โRelated QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 ๐ Back to Homepage ๐ Download PDF Books ๐ Premium PDF Books