This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 189 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 189 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the smallest blood vessel that responsible in transporting oxygen and nutrients to every cells? A) Arteries. B) Veins. C) Nerves. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 2. What is "the smallest living thing" A) A bird. B) An ant. C) A cell. D) Mr. J's head. Show Answer Correct Answer: C) A cell. 3. Which part of the human body is responsible for the exchange of gases? A) Heart. B) Lungs. C) Kidneys. D) Liver. Show Answer Correct Answer: B) Lungs. 4. Explain how capillaries are adapted to speed up the process of gas exchange A) Really smart, so it doesn't have to think about it too much. B) Thin wall, so the substances have to diffuse over a shorter distance. C) More blood gets pushed through, so it goes faster. D) Really thick wall, so the substances have a larger distance to diffuse over. Show Answer Correct Answer: B) Thin wall, so the substances have to diffuse over a shorter distance. 5. What is the purpose of the valves? A) To keep blood from leaving the heart at all. B) To keep any only blood from entering the heart,. C) To keep the blood flowing in one direction. D) To create pressure in the arteries. Show Answer Correct Answer: C) To keep the blood flowing in one direction. 6. The three steps of hemostasis are:1. vascular spasm 2 ..... 3. coagulation A) Platelet plug formation. B) Agglutination. C) Dilation. D) Erythropoieten formation. Show Answer Correct Answer: A) Platelet plug formation. 7. When red blood cells are sickle shaped, it is a disease called ..... A) Hemophilia. B) Sickle-cell. C) Leukemia. D) Anemia. Show Answer Correct Answer: B) Sickle-cell. 8. High Blood pressure is known as A) Hypersomnia. B) Hyperventilation. C) Hypertension. D) Hypoxia. Show Answer Correct Answer: C) Hypertension. 9. Blood is a complex tissue. What is a tissue A) A group of cells. B) A group of organs. C) A group of tissues. D) A group of organ systems. Show Answer Correct Answer: A) A group of cells. 10. Which chamber of the heart pumps oxygenated blood to the body? A) Right Atrium. B) Right Ventricle. C) Left Atrium. D) Left Ventricle. Show Answer Correct Answer: D) Left Ventricle. 11. Dilated, swollen veins that have lost elasticity and cause stasis, or decreased blood flow, are called ..... A) Phlebitis. B) Aneurysm. C) Varicose. D) Emboli. Show Answer Correct Answer: C) Varicose. 12. Of the following, which is NOT a function of blood? A) Carries waste products. B) Carries nutrients. C) Carries oxygen. D) Digestion. Show Answer Correct Answer: D) Digestion. 13. The part of the heart that receives blood from the left ventricle. A) Left Atrium. B) Aorta. C) Right Ventricle. D) Left Ventricle. Show Answer Correct Answer: B) Aorta. 14. The heart rate is highest when someone is resting and lowest after doing exercises. A) True. B) False. Show Answer Correct Answer: B) False. 15. What would happen if you gave a person with AB blood a type A blood transfusion? A) The person would die. B) They would also need B blood. C) Nothing, they can accept A blood. D) It would need to be mixed with O blood. E) All of the above. Show Answer Correct Answer: C) Nothing, they can accept A blood. 16. We work out our target heart rate by ..... A) 220-our age. B) 220-our age x 0.85. C) 220. D) 40-60. Show Answer Correct Answer: B) 220-our age x 0.85. 17. The left lung has three lobes and the right lung has two. A) True. B) False. Show Answer Correct Answer: B) False. 18. Which blood vessels carry blood back to the heart? A) Veins. B) Arteries. C) Capillaries. D) All blood vessels do. Show Answer Correct Answer: A) Veins. 19. These take blood carrying oxygen to all the parts of the body. A) Veins. B) Arteries. C) Marrow. D) Capillaries. Show Answer Correct Answer: B) Arteries. 20. What would happen to your blood pressure if you were very dehydrated A) Increase. B) Decrease. C) Stay the same. D) Go down then go up. Show Answer Correct Answer: A) Increase. ← 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