This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 443 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 443 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which blood vessel carries dark red blood? A) Veins. B) Arteries. C) Both. D) Neither. Show Answer Correct Answer: A) Veins. 2. The bottom chambers of the heart that pump the blood are called- A) Atria. B) Ventricles. C) Valves. D) All of these. Show Answer Correct Answer: B) Ventricles. 3. In larger organisms..... A) Each cell has an individual job. B) Cells work together. C) Glucose works together. D) The heart works together. Show Answer Correct Answer: B) Cells work together. 4. Which of these is a common risk factor for heart disease? A) Having high blood pressure. B) Being overweight. C) Exercising regularly. D) None of above. Show Answer Correct Answer: A) Having high blood pressure. 5. What is the difference between saltwater and freshwater ecosystems? A) Freshwater ecosystems don't have plants, and saltwater ecosystems do. B) Saltwater ecosystems have a lot of salt, and freshwater ecosystems don't. C) Animals can only live in one part of a saltwater ecosystem, but they can survive anywhere in a freshwater ecosystem. D) Freshwater ecosystems have three habitats, and saltwater ecosystems have one. Show Answer Correct Answer: B) Saltwater ecosystems have a lot of salt, and freshwater ecosystems don't. 6. A decrease in blood pressure with standing and lying of greater than 10-20 could be: A) Hypertension. B) Orthostatic hypotension. C) Normal. D) None of above. Show Answer Correct Answer: B) Orthostatic hypotension. 7. Which of the following separates the right side of the heart from the left? A) Chamber. B) Pericardium. C) Valve. D) Septum. Show Answer Correct Answer: D) Septum. 8. These are the lower chambers of the heart. A) Atria. B) Ventricles. C) Arterioles. D) Valves. Show Answer Correct Answer: B) Ventricles. 9. The entrance to the ascending aorta is guarded by A) An atrioventricular valve. B) Bicuspid valve. C) Semilunar valve. D) Tricuspid valve. Show Answer Correct Answer: C) Semilunar valve. 10. What is the main function of the hemoglobin in the red blood cells? A) Carry oxygen to the cells. B) Protect against disease and harmful bacteria; produce antibodies. C) Carry carbon dioxide away from the cells. D) Involved in the clotting process of the blood following an injury. Show Answer Correct Answer: A) Carry oxygen to the cells. 11. Systems that slows vital signs down A) Sympathetic system. B) Nervous system. C) Central nervous system. D) Peripheral nervous system. E) Parasympathetic system. Show Answer Correct Answer: E) Parasympathetic system. 12. What do you call "a group of organs that come together to do a similar job" ? A) A cell. B) A Tissue. C) An Organ. D) An organ system. Show Answer Correct Answer: D) An organ system. 13. Where are red blood cells produced in the body? A) Lungs. B) Liver. C) Spleen. D) Bone marrow. Show Answer Correct Answer: D) Bone marrow. 14. You can get oxygen to your brain by doing regular exercise. A) True. B) False. Show Answer Correct Answer: A) True. 15. What kind of transport does not require energy? A) Active. B) Vacuoles. C) Passive. D) Na/K Pump. Show Answer Correct Answer: C) Passive. 16. Process that destroys worn out blood cells A) Phagocytosis. B) Hemostasis. C) Hematization. D) Coagulation. Show Answer Correct Answer: A) Phagocytosis. 17. How many lobes does the right lung have? A) 2. B) 3. C) 1. D) 4. Show Answer Correct Answer: B) 3. 18. Large blood vessels that carry oxygenated blood away from the heart. A) Capillaries. B) Arteries. C) Immune. D) Veins. Show Answer Correct Answer: B) Arteries. 19. Lymph is a pale fluid that contains white blood cells. Which system is lymph a part of? A) Respiratory. B) Digestive. C) Circulatory. D) Muscular. Show Answer Correct Answer: C) Circulatory. 20. What type of blood is the universal recipient? A) A. B) B. C) AB. D) O. Show Answer Correct Answer: C) AB. ← 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