This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 560 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 560 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Heart Attack, Stroke & Atherosclerosis are examples of? A) Respiratory Diseases. B) Cardiovascular Diseases (CVD). C) Cholesterol. D) Hypertension. Show Answer Correct Answer: B) Cardiovascular Diseases (CVD). 2. Which blood vessel do CO2 rich RBC take to get from the heart to the lungs? A) Pulmonary Artery. B) Pulmonary Vein. C) Pulmonary Aorta. D) Pulmonary Septum. Show Answer Correct Answer: A) Pulmonary Artery. 3. Type of blood vessels taking blood to the heart A) Venules. B) Veins. C) Capillaries. D) Arteries. Show Answer Correct Answer: B) Veins. 4. The heart is composed of ..... chambers. A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 5. Which body function is made possible by the fibrous bands stretched across the larynx? A) Swallowing. B) Breathing. C) Diffusion. D) Speech. Show Answer Correct Answer: D) Speech. 6. Pumps oxygenated blood around the body and deoxygenated blood towards the lungs A) Heart. B) Arteries. C) Veins. D) Capillaries. E) Circulatory system and its parts. Show Answer Correct Answer: A) Heart. 7. Atria are A) The two lower chambers of the heart. B) Blood vessels that connect larger vessels. C) The two upper chambers of the heart. D) Circulation to all tissues. Show Answer Correct Answer: C) The two upper chambers of the heart. 8. Blood is pumped to the lungs by the ..... side of the heart. A) Right. B) Left. Show Answer Correct Answer: A) Right. 9. The basic unit of life A) Cell. B) Microorganism. C) Organism. D) Tissue. Show Answer Correct Answer: A) Cell. 10. What is the difference between a biotic factor and an abiotic factor? A) Biotic factors include elements like weather and temperature, while abiotic factors produce carbon dioxide and oxygen. B) Biotic factors are living things and abiotic factors are non-living things. C) Biotic factors exist in an ecosystem, but abiotic factors do not. D) Biotic factors are non-living things and abiotic factors are living things. Show Answer Correct Answer: B) Biotic factors are living things and abiotic factors are non-living things. 11. The job of the red blood cell is to A) Fight infection. B) Deliver oxygen and discard carbon dioxide. C) Form scabs. D) None of above. Show Answer Correct Answer: B) Deliver oxygen and discard carbon dioxide. 12. Proportion by volume of the blood A) Hemostasis. B) Hematization. C) Hematocrit. D) Hemoglobin. Show Answer Correct Answer: C) Hematocrit. 13. Blood enters the right atrium through A) Pulmonary veins. B) Vena cava. C) Pulmonary arteries. D) Aorta. Show Answer Correct Answer: B) Vena cava. 14. What is the organ that allows the union between the Digestive system and the circulatory system? A) Mouth. B) Small intestine. C) Blood. D) Heart. Show Answer Correct Answer: B) Small intestine. 15. Which chamber of the heart contracts with the most force? A) Right atrium. B) Right ventricle. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 16. What is circulated around the body with our blood? A) Nutrients. B) Oxygen. C) Hormones. D) All are correct answers. E) None of the given answers. Show Answer Correct Answer: D) All are correct answers. 17. In which of the following blood vessels does the diffuses of gases and nutrients occur? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 18. It gives a red color to the blood. Because of this color they are called erythrocytes, erythos in Greek for red and cyte pertains to cell A) Red blood cells. B) White blood cells. C) Hemoglobin. D) Plasma. Show Answer Correct Answer: C) Hemoglobin. 19. What's the function of the plasma? A) It carries oxygen and carbon dioxide. B) It fights infections. C) When the body is losing blood, it helps stop the bleeding. D) It carries the nutrients and waste products. Show Answer Correct Answer: D) It carries the nutrients and waste products. 20. Your ..... is a muscle connected to the bottom of your lungs that helps your lungs expand and contract when you breathe. A) Esophagus. B) Alveoli. C) Trachea. D) Diaphragm. Show Answer Correct Answer: D) Diaphragm. ← 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