This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 64 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 64 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the function of the blood vessels and capillaries? A) They pump blood to the heart. B) They filter impurities from the blood. C) They carry blood to all parts of the body. D) They carry messages from the brain to the muscles. Show Answer Correct Answer: C) They carry blood to all parts of the body. 2. Types of Anemia- A) Aplastic. B) Pernicious. C) Sickle Cell. D) All of the above. Show Answer Correct Answer: D) All of the above. 3. The MAIN function of the circulatory system is to A) Move materials throughout the body. B) Fight infections and heal wounds. C) Give blood oxygen. D) Keep the heart beating. Show Answer Correct Answer: A) Move materials throughout the body. 4. The trachea is also known as A) The lungs. B) The windpipe. C) The esophagus. D) The bronchi. Show Answer Correct Answer: B) The windpipe. 5. The pelvic girdle protects our: A) Delicate organs present in the lower part of the body. B) Delicate organs present in the upper part of our body. Show Answer Correct Answer: A) Delicate organs present in the lower part of the body. 6. Contain haemoglobin A) Plasma. B) Red blood cell. C) White blood cell. D) Platelet. Show Answer Correct Answer: B) Red blood cell. 7. In what blood vessel are substances (like oxygen) transported directly into organ tissues? A) Arteries. B) Capillaries. C) Red blood cells. D) Veins. Show Answer Correct Answer: B) Capillaries. 8. The main organ of the circulatory system is the (a) A) A heart. B) Liver. C) Blood. D) Vein. Show Answer Correct Answer: A) A heart. 9. This is responsible for protecting you from illness and disease A) White Blood Cells. B) Red Blood Cells. C) Blood Vessels. D) Capillaries. Show Answer Correct Answer: A) White Blood Cells. 10. The microcirculation of blood in the proper human is ..... A) Right ventricle-pulmonary vein-lung-pulmonary artery-right atrium. B) Right ventricle-pulmonary artery-lungs-pulmonary veins-left atrium. C) Left ventricle-pulmonary vein-lung-pulmonary artery-right atrium. D) Left ventricle-pulmonary artery-lungs-pulmonary veins-right atrium. E) Right ventricle-pulmonary artery-lung-pulmonary vein-right atrium. Show Answer Correct Answer: B) Right ventricle-pulmonary artery-lungs-pulmonary veins-left atrium. 11. The smallest blood vessels in our body. A) Veins. B) Capillaries. C) Heart. D) Arteries. Show Answer Correct Answer: B) Capillaries. 12. Choose the best description of anemia. A) Deficient hemoglobin content. B) Blood cells are sickle shaped and have difficultly carrying sufficient oxygen. C) White blood cells attack self cells. D) Blood clots in an unbroken blood vessel. Show Answer Correct Answer: A) Deficient hemoglobin content. 13. What are the three types of blood vessels and their functions? A) Arteries, veins, and capillaries. B) Aorta, pulmonary artery, vena cava. C) Red blood cells, white blood cells, platelets. D) Left atrium, right ventricle, pulmonary valve. Show Answer Correct Answer: A) Arteries, veins, and capillaries. 14. Thin blood vessels in the body. A) Arteries. B) Veins. C) Blood capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 15. Which of the following is not a part of stethoscope? A) Earpiece. B) Diaphragm. C) Chest piece. D) Eyepiece. Show Answer Correct Answer: D) Eyepiece. 16. What do we call the smallest blood vessels in our bodies? A) Capillaries. B) Atoms. C) Tissues. D) Cells. Show Answer Correct Answer: A) Capillaries. 17. When we breath in (inhalation) A) The diaphragm contracts and descends. there is more space for air to fill the lungs. B) The diaphragm relaxes and rises. it pushes the air out of the lungs. Show Answer Correct Answer: A) The diaphragm contracts and descends. there is more space for air to fill the lungs. 18. The lymphatic system is unlike the circulatory system because it is a A) Closed system. B) System that contains white blood cells. C) Simple system. D) One-way system. Show Answer Correct Answer: D) One-way system. 19. Veins carry blood ..... A) Away from the heart. B) Back to the heart. C) Into cells. D) None of above. Show Answer Correct Answer: B) Back to the heart. 20. What is the hormone that stimulates platelet formation A) Erythropoietin. B) Interleukin. C) Thrombopoietin. D) None of above. Show Answer Correct Answer: C) Thrombopoietin. ← 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