This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 402 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 402 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which organism performs all life processes in one cell? A) Grass. B) Bacteria. C) Mushroom. D) Butterfly. Show Answer Correct Answer: B) Bacteria. 2. In which type of circuit is there a valve that helps the machine flow in one direction? A) Artery. B) Vein. C) Capillaries. D) All 3 types are correct. Show Answer Correct Answer: B) Vein. 3. Letter G is known as the A) Superior Vena Cava. B) Left Ventricle. C) Inferior Vena Cava. D) Right Ventricle. Show Answer Correct Answer: C) Inferior Vena Cava. 4. The left side of the heart receives what from the lungs? A) Nutrients. B) Proteins. C) Deoxygenated blood. D) Oxygenated blood. Show Answer Correct Answer: D) Oxygenated blood. 5. The circulatory system contains ..... A) Head, shoulders, knees, and toes. B) Eyes, and, ears, and, mouth, and nose. C) Skin, lungs, and liver. D) Heart, arteries, and veins. Show Answer Correct Answer: D) Heart, arteries, and veins. 6. Creates the electrical impulse that cause the heart to beat. A) Systole. B) Atrioventricular Node. C) Sinoatrial Node. D) Diastole. Show Answer Correct Answer: C) Sinoatrial Node. 7. What does the circulatory system help our blood carry away from our body? A) Oxygen. B) Hydrogen. C) Carbon dioxide. D) Helium. Show Answer Correct Answer: C) Carbon dioxide. 8. Diaphragm A) A blood vessel that carries blood back to the heart. B) The throat; part of the respiratory and digestive system. C) The two lower chambers of the heart that pumps blood out of the heart,. D) Large muscle located at the bottom of a mammal's rib cage that functions in breathing. E) A blood vessel that carries blood away from the heart. Show Answer Correct Answer: D) Large muscle located at the bottom of a mammal's rib cage that functions in breathing. 9. Which of these describes a patient with anemia? A) He lacks blood in the body. B) He lacks white blood cells in the body. C) He lacks enough healthy red blood cells to carry adequate oxygen to your body's tissues. D) None of the above. Show Answer Correct Answer: C) He lacks enough healthy red blood cells to carry adequate oxygen to your body's tissues. 10. Blood entering the pulmonary arteries is oxygen-rich or oxygen-poor? A) Oxygen-rich. B) Oxygen-poor. Show Answer Correct Answer: B) Oxygen-poor. 11. What is an abnormal heart rate called? A) Arrhythmia. B) Atherosclerosis. C) Myocardial Infarction. D) Prolapsed valves. Show Answer Correct Answer: A) Arrhythmia. 12. What do lymph nodes produce? A) Lymphocytes. B) Nutrients. C) Pathogens. D) Blood plasma. Show Answer Correct Answer: A) Lymphocytes. 13. Condition of thickening, hardening, and loss of elasticity in the arterial walls A) Coronary Artery Disease. B) Arteriosclerosis. C) Peripheral Artery Disease. D) Atherosclerosis. Show Answer Correct Answer: B) Arteriosclerosis. 14. Sick cell anemia is a malfunction involving abnormally shaped: A) White blood cells. B) Platelets. C) Cutlets. D) Red blood cells. Show Answer Correct Answer: D) Red blood cells. 15. The right atrium receives oxygenated blood from the lungs. A) True. B) False. Show Answer Correct Answer: B) False. 16. What powerful muscle keeps the blood moving throughout the body? A) Capillaries. B) Arteries. C) Heart. D) Kidneys. Show Answer Correct Answer: C) Heart. 17. The systemic circuit takes blood to the lungs? A) True. B) False. Show Answer Correct Answer: B) False. 18. Pulmonary veins carry A) Oxygenated blood. B) Deoxygenated blood. C) Platelets only. D) White blood cells only. Show Answer Correct Answer: A) Oxygenated blood. 19. When blood leaves this chamber of the heart, it heads out to the body (not the lungs) A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: C) Left ventricle. 20. Why is diffusion so important in biology? A) It's the basic power source for most types of cells. B) It allows substances to move across cell membranes. C) It prevents toxins from entering our bodies. D) Without diffusion, cell division could not take place. Show Answer Correct Answer: B) It allows substances to move across cell membranes. ← 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