This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 565 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 565 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Veins are also called..... A) Arteries. B) Return vessel. Show Answer Correct Answer: B) Return vessel. 2. The push of blood against the walls of blood vessels is ..... A) Arteries. B) Blood pressure. C) Capillaries. D) Veins. Show Answer Correct Answer: B) Blood pressure. 3. This is a disorder of the blood. There is a lack of red blood cells to carry oxygen to the heart. A) Anemia. B) Atherosclerosis. C) Tachycardia. D) None of above. Show Answer Correct Answer: A) Anemia. 4. What percent of the blood are white blood cells? A) Less than 1%. B) 45%. C) 55%. D) None of above. Show Answer Correct Answer: A) Less than 1%. 5. The last section of the digestive system, where water is absorbed from food and the remaining material is eliminated from the body A) Small Intestine. B) Large Intestine. C) Stomach. D) None of above. Show Answer Correct Answer: B) Large Intestine. 6. To which chamber of the heart does the blood coming from the body arrive to? A) Right Atrium. B) Left Atrium. C) Right Ventricle. D) Left Ventricle. Show Answer Correct Answer: A) Right Atrium. 7. About 85% of the people in the world are Rh+ or Rh-? A) Rh+. B) Rh-. Show Answer Correct Answer: A) Rh+. 8. A stroke happens when A) When there is enough oxygen getting to the brain. B) When there is a lack of oxygen getting to the brain. C) Both of them. D) None of above. Show Answer Correct Answer: B) When there is a lack of oxygen getting to the brain. 9. What is the unit of measuring pulse rate? A) Degree Celsius (oC). B) Frequency (Hz). C) Beats per minute (bpm). D) Millimetres of mercury (mm Hg). Show Answer Correct Answer: C) Beats per minute (bpm). 10. What is the primary characteristic of capillaries that allows easy gas exchange? A) Thick walls. B) Thin walls. C) Valves. D) High pressure. Show Answer Correct Answer: B) Thin walls. 11. 55% of the bloods volume is made up of: A) Erythrocytes. B) Leukocytes. C) Plasma. D) Thrombocytes. Show Answer Correct Answer: C) Plasma. 12. What is the process by which red blood cells are made? A) Erythrocytes. B) Erythropoiesis. C) Hemoglobin. D) Leukocytes. Show Answer Correct Answer: B) Erythropoiesis. 13. Which structure is made of tissue? A) Cell. B) Organ. C) Organ System. D) Organism. Show Answer Correct Answer: B) Organ. 14. What happens to the walls of the arteries as the heart pushes blood through them? A) They shrink. B) They stretch. C) They get tight. D) They constrict. Show Answer Correct Answer: B) They stretch. 15. In the skeletal system ..... allow for side to side movement A) Pivot joint. B) Ball and socket joint. C) Hinge joint. D) Legs. Show Answer Correct Answer: A) Pivot joint. 16. She's honest, ..... everyone trusts her. A) For. B) Such. C) So. D) When. Show Answer Correct Answer: C) So. 17. Which blood vessel carries deoxygenated (oxygen-poor) blood from the brain to the heart? A) Aorta. B) Inferior vena cava. C) Left Atrium. D) Superior vena cava. Show Answer Correct Answer: D) Superior vena cava. 18. What is the approximate length of the blood vessels in the human body, according to the text? A) 1, 000 km. B) 50, 000 km. C) 100, 000 km. D) 500, 000 km. Show Answer Correct Answer: C) 100, 000 km. 19. A normal heart on an average Beats ..... time per minute A) 70. B) 100. C) 72. D) 77. E) 76. Show Answer Correct Answer: C) 72. 20. The atria are the "downstairs" chambers of the heart and the ventricles are the "upstairs" chambers. A) True. B) False. Show Answer Correct Answer: B) False. ← 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