This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 194 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 194 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of these contain heamoglobin. A) Plasma. B) White Blood Cells. C) Platelets. D) Red Blood Cells. Show Answer Correct Answer: D) Red Blood Cells. 2. The average person's heart beats about ..... times per minute when at rest. A) 35. B) 75. C) 120. D) None of above. Show Answer Correct Answer: B) 75. 3. ..... help clot blood. A) Red blood cells. B) Platelets. C) White blood cells. D) Lymph nodes. Show Answer Correct Answer: B) Platelets. 4. In order to get fresh oxygen, dispose of carbon dioxide, and get new sugar for cells, the circulatory system has to connect with the intestines and these A) Heart. B) Vessels. C) Lungs. D) Veins. Show Answer Correct Answer: C) Lungs. 5. Veins carry blood ..... the heart A) Into. B) Away from. C) Past. D) Out of. Show Answer Correct Answer: A) Into. 6. What is a fist size muscular organ A) Lungs. B) Heart. C) Kidneys. D) None of these. Show Answer Correct Answer: B) Heart. 7. Pumping chambers of the heart. A) Atrium. B) Ventricles. Show Answer Correct Answer: B) Ventricles. 8. The chamber of the heart that receives blood from the right atrium. A) Plasma. B) Pulmonary valve. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: D) Right ventricle. 9. A blood vessel that carries blood away from the heart. A) Blood. B) Cardiovascular System. C) Heart. D) Artery. Show Answer Correct Answer: D) Artery. 10. Chamber of the heart that pumps high oxygen blood to the body A) Left atrium. B) Left ventricle. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: B) Left ventricle. 11. The smallest respiratory passageways to move air are called the A) Bronchioles. B) Trachea. C) Bronchi. D) Alveoli. Show Answer Correct Answer: A) Bronchioles. 12. The "lub-dub" sound the heart makes is caused by the following ..... A) The heart contracting (orange). B) Blood entering and leaving the heart (blue). C) Valves opening and closing (red). D) None of above. Show Answer Correct Answer: C) Valves opening and closing (red). 13. This happens when the ventricles are filling with blood: A) Systole. B) Diastole. Show Answer Correct Answer: B) Diastole. 14. What is the primary characteristic of arteries that helps them withstand pressure? A) Thin walls. B) Valves. C) Thick, muscular walls. D) Low pressure. Show Answer Correct Answer: C) Thick, muscular walls. 15. The lowest pressure measured in the arteries after relaxation of the heart muscle- A) Systolic pressure. B) Pulmonary circuit. C) Superior vena cava. D) Diastolic pressure. Show Answer Correct Answer: D) Diastolic pressure. 16. The veins have a A) Thick outer wall and muscle layer, and narrow central tube. B) Thin outer wall and muscle layer, and wide central tube. Show Answer Correct Answer: B) Thin outer wall and muscle layer, and wide central tube. 17. Blood that travels through the VEINS has got ..... A) Oxygen. B) To hurry. C) Carbon dioxide. D) None of above. Show Answer Correct Answer: C) Carbon dioxide. 18. A person with Rh+ blood do not have Rh antigens on Red Blood Cells. A) True. B) False. Show Answer Correct Answer: B) False. 19. It carries oxygen and carbon dioxide to and away from the cells. A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: A) Red blood cells. 20. Oxygenated and Deoxygenated blood are mixing in the heart, this could be caused by ..... A) Heart valves not working properly. B) A hole in the septum. C) A cut in the aorta. D) Both heart valves not working properly OR a hole in the septum. Show Answer Correct Answer: D) Both heart valves not working properly OR a hole in the septum. ← PreviousNext →Related 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 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books