This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 115 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 115 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What part of blood is responsible for caring oxygen? A) Erythrocytes. B) Leukocytes. C) Thrombocytes. D) Plasma. Show Answer Correct Answer: A) Erythrocytes. 2. To veins carry blood to or away from the heart A) To the Heart. B) Away from the Heart. Show Answer Correct Answer: A) To the Heart. 3. For a normal person, how many times does a heart contract per minute? A) 50 times. B) 72 times. C) 100 times. D) 120 times. Show Answer Correct Answer: B) 72 times. 4. The ..... system is made up of:1. Heart. 2. Blood. 3. Blood vessels. A) Circulatory. B) Digestive. C) Nervous. D) None of above. Show Answer Correct Answer: A) Circulatory. 5. Another term for high blood pressure is A) Hypertension. B) Hypothermia. C) Hydrophobia. D) Hydrolysis. Show Answer Correct Answer: A) Hypertension. 6. What are the two main organs of the lymph system? A) Thymus & Pancreas. B) Spleen & Thymus. C) Pancreas & Thyroid. D) Tonsils and Thyroid. Show Answer Correct Answer: B) Spleen & Thymus. 7. ..... carry oxygen and nutrients to all cells in the body. A) Arteries. B) Veins. C) Capillaries. D) Valves. Show Answer Correct Answer: A) Arteries. 8. What are the components of blood? A) RBCs, WBCs, Platelets. B) RBCs, WBCs, Platelets, Plasma. C) RBCs only. D) Plasma only. Show Answer Correct Answer: B) RBCs, WBCs, Platelets, Plasma. 9. Then, it passes to the left ventricle which sends blood around the entire body through the aorta A) 1. B) 2. C) 3. D) 4. E) 5. Show Answer Correct Answer: E) 5. 10. Which body system does your cardiovascular system work with to oxygenate the blood? A) Muscular. B) Skeletal. C) Lymphatic. D) Respiratory. Show Answer Correct Answer: D) Respiratory. 11. After a few days at altitude the number of RBCs can increase to cope with the reduction of low pO2. What is this called A) Acclimatisation. B) Capillarisation. C) Haemodilation. D) Vasodilation. Show Answer Correct Answer: A) Acclimatisation. 12. The right side of your heart pumps ..... through your lungs to pick up oxygen A) Oxygen-rich blood. B) Oxygen-poor blood. Show Answer Correct Answer: B) Oxygen-poor blood. 13. What is the use of platelets in the body A) Needed for immunity. B) Needed for energy. C) Needed for clotting. D) Needed for digestion. Show Answer Correct Answer: C) Needed for clotting. 14. The largest artery in the circulatory system transporting oxygenated blood to the body is called A) Pulmonary vein. B) Pulmonary artery. C) Aorta. D) Hepatic artery. E) Renal artery. Show Answer Correct Answer: C) Aorta. 15. Gas we breathe in A) Carbon dioxide. B) Oxygen. C) Helium. D) None of above. Show Answer Correct Answer: B) Oxygen. 16. Blood flow from the vena cava to the coronary veins via the heart, how many heart chambers does the blood pass through? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 17. Which organs are part of the circulatory system? A) Heart, lungs, kidneys. B) Heart, arteries, veins, capillaries. C) Liver, stomach, intestines. D) Brain, spinal cord, nerves. Show Answer Correct Answer: B) Heart, arteries, veins, capillaries. 18. What gives platelets the ability to clot? A) Fibrin. B) Clotterin. C) Healin. D) Platin. Show Answer Correct Answer: A) Fibrin. 19. Blood takes carbon dioxide and waste products away. A) True. B) False. Show Answer Correct Answer: A) True. 20. A condition that develops when your blood lacks enough healthy red blood cells or hemoglobin A) Lymphatic System. B) Not Anemia. C) Platelets. D) Anemia. Show Answer Correct Answer: D) Anemia. ← 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