This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 675 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 675 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are blood groups? A) The complex chemical systems present on the surface of blood. B) The foreign substances in the body of humans that intiate the production of antibodies by the human immune system. C) The chemical substances which are produced by the leucocytes in response to antigens. D) None of the above. Show Answer Correct Answer: A) The complex chemical systems present on the surface of blood. 2. Cerebrum is responsible for? A) Logic and planning. B) Breathing and heart rate. C) Walking and talking. D) Thinking and winking. Show Answer Correct Answer: A) Logic and planning. 3. All of the following are true of the left ventricle except: A) Wall is typically 3 times thicker than that of right ventricle. B) It is separated from left atrium by Mitral valve. C) Aortic semilunar valve at superior end separates it from the aorta. D) Receives deoxygenated venous blood from the left atrium. Show Answer Correct Answer: D) Receives deoxygenated venous blood from the left atrium. 4. Which blood vessel has the thinnest wall? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 5. Which is the pacemaker of the heart? A) Bundle of His. B) Purkinje fibres. C) Sinoatrial node. D) AV node. Show Answer Correct Answer: C) Sinoatrial node. 6. Allows blood flow into the aorta A) Aortic semilunar valve. B) Pulmonary semilunar valve. C) Left ventricle. D) None of above. Show Answer Correct Answer: A) Aortic semilunar valve. 7. It is the first number in reading the blood pressure. It indicates the pressure when the heart contracts and pushes blood to the arteries. A) Diastolic blood pressure. B) Systolic blood pressure. Show Answer Correct Answer: B) Systolic blood pressure. 8. What happens if valves in heart donot work properly? A) Blood flows in heart chambers in backward direction. B) Results in extra burden on heart to pump blood forward. This condition places extra burden on the heart in pushing the blood forward. C) Both. D) None is none. Show Answer Correct Answer: C) Both. 9. Oxygenated blood in the lungs is propelled to the heart by A) The pulmonary artery. B) The pulmonary vein. C) The aorta artery. D) None of above. Show Answer Correct Answer: B) The pulmonary vein. 10. Pump the blood and keep the blood moving throughout your body A) Blood. B) Heart. C) Blood vessels. D) None of above. Show Answer Correct Answer: B) Heart. 11. Basophils include..... A) Granulocyte leukocytes. B) Agranulocyte leukocytes. Show Answer Correct Answer: A) Granulocyte leukocytes. 12. Name that System:trachea A) Respiratory. B) Circulatory. C) Digestive. D) None of above. Show Answer Correct Answer: A) Respiratory. 13. The pressure exerted by roothairs towards..... is called root pressure. The process by which the root hairs are made towards the side is called parting. A) Main root is the main branch. B) Xylem tract. C) Phloem is nutrient tissue. D) Shoot system is the stem system. Show Answer Correct Answer: B) Xylem tract. 14. The correct order of deoxygenated blood entering the heart and traveling to the lungs: A) Aorta > right ventricle> right atrium > left atrium > left ventricle > lungs. B) Vena cava > right atrium > right ventricle> pulmonary artery > lungs. C) Vena Cava > left atrium > left ventricle > pulmonary vein > lungs. D) Pulmonary vein > left atrium > left ventricle > aorta> body. Show Answer Correct Answer: B) Vena cava > right atrium > right ventricle> pulmonary artery > lungs. 15. The number of times your heart beats in a minute is called your pulse. A) True. B) False. Show Answer Correct Answer: B) False. 16. Blood in mammals is contains plasma (fluid part of blood) that A) Contain haemoglobin that binds and transports oxygen and carbon dioxide. B) Play roles in the immune system such as engulfing pathogens and producing antibodies. C) Are fragments of cells that prevent blood loss and ensure that blood clots. D) Contains dissolved ions, gasses, proteins and hormones. Show Answer Correct Answer: D) Contains dissolved ions, gasses, proteins and hormones. 17. The function of the digestive system is A) Breakdown foods. B) Absorb nutrients. C) Eliminate waste. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. How much blood does the heart pump every minute? A) 1 liter. B) 2.5 liters. C) 5 liters. D) 7 liters. Show Answer Correct Answer: C) 5 liters. 19. What organ is responsible for circulating blood throughout your body? A) Heart. B) Arteries. C) Veins. D) None of above. Show Answer Correct Answer: A) Heart. 20. Caused by lack of red blood cells. a person with this feels weak and gets tired easily A) Hypertension. B) Arteriosclerosis. C) Anemia. D) Leukemia. Show Answer Correct Answer: C) 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