This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 359 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 359 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Carry blood away from heart; mostly oxygen-rich A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Arteries. 2. What is the term for a group of organs that break down food so that it can be used for energy, cell growth and repair? A) Circulatory system. B) Digestive system. C) Excretory system. D) Muscular system. E) Nervous system. Show Answer Correct Answer: B) Digestive system. 3. Carries messages/signals back and forth between brain and body A) Brain. B) Spinal Cord. C) Neurons. D) None of above. Show Answer Correct Answer: B) Spinal Cord. 4. Carries blood from the upper body to the right atrium A) Superior vena cava. B) Inferior vena cava. C) Four pulmonary veins. D) Aorta. Show Answer Correct Answer: A) Superior vena cava. 5. What is rigor mortis essentially? A) Death color. B) Death stiffness. C) Death temperature. D) None of above. Show Answer Correct Answer: B) Death stiffness. 6. A waste product in the blood that comes from the breakdown of proteins. A) Artery. B) Capillary. C) Platelet. D) Urea. Show Answer Correct Answer: D) Urea. 7. The heart is an organ that pumps blood throughout the body supplying oxygen, nutrients, and hormones to and from tissues. It also removes ..... and other wastes. A) Hydrogen dioxide. B) Carbon monoxide. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 8. The mitral (tricuspid) valve connects which of the following? A) R atrium and R ventricle. B) L atrium and L ventricle. C) R atrium and L atrium. D) L ventricle and R ventricle. Show Answer Correct Answer: A) R atrium and R ventricle. 9. What does the Circulatory System transport and take away? A) It transports donuts to Dunkin and takes away trash to Dump. B) It transports needed materials to cells and takes away wastes. C) It transports unneeded materials and takes away air. D) It transports fat to the stomach and takes away gas from the body. Show Answer Correct Answer: B) It transports needed materials to cells and takes away wastes. 10. Makes up 55% of your blood. A) PLASMA. B) PLATELETS. C) WHITE BLOOD CELLS. D) RED BLOOD CELLS. Show Answer Correct Answer: A) PLASMA. 11. These are vessels that are very small and delivers blood to the capillaries. A) Veins. B) Venules. C) Arteries. D) Arterioles. Show Answer Correct Answer: D) Arterioles. 12. The function of white blood cell is to ..... A) Stop the bleeding. B) Excrete blood clotting factor. C) Attack germs from entering to the blood. D) All of the above are correct. Show Answer Correct Answer: C) Attack germs from entering to the blood. 13. What structure separates the right ventricle from the left ventricle? A) Septum. B) Bicuspid valve. C) Tricuspid valve. D) Pulmonary semi-lunar valve. Show Answer Correct Answer: A) Septum. 14. What prevents blood from flowing backwards from the heart? A) Platelets. B) Blood clots. C) Aorta. D) Valves. Show Answer Correct Answer: D) Valves. 15. The order of the conductive pathway for the electrical impulses is A) SA node-AV node-left & right bundle branches-Purkinje fibers. B) Purkinje fibers-SA node-AV node-bundle of HIS-left & right bundle branches. C) Pacemaker-AV node-bundle of HIS-left & right bundle branches-Purkinje fibers. D) Superior & inferior vena cava-aorta-arteries-arterioles-veins-venules. Show Answer Correct Answer: C) Pacemaker-AV node-bundle of HIS-left & right bundle branches-Purkinje fibers. 16. What happens to the excess fluid before it re-enters the circulation through the lymphatic system? A) It is stored in the lymph nodes. B) It is expelled from the body. C) It is converted into blood cells. D) It is filtered by the lymph nodes. Show Answer Correct Answer: D) It is filtered by the lymph nodes. 17. What kind of blood enters the right side of the heart? A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: B) Deoxygenated. 18. Which of the following is responsible for blood clotting? A) Platelets. B) Plasma. C) White blood cells. D) Red blood cells. Show Answer Correct Answer: A) Platelets. 19. What vessels carry blood to the heart? A) Arteries. B) Capillaries. C) Veins. D) Collateral vessels. Show Answer Correct Answer: C) Veins. 20. Which is the largest and the main artery of the circulatory system? A) Atrium. B) Vein. C) Valve. D) Aorta. Show Answer Correct Answer: D) Aorta. ← 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