This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 20 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The smallest branches of arteries are called arterioles. A) True. B) False. Show Answer Correct Answer: A) True. 2. What circulation carries oxygenated blood to the body? A) Coronary. B) Systemic. C) Pulmonary. D) Portal. Show Answer Correct Answer: B) Systemic. 3. What happens if your blood pressure is too high? A) It keeps your heart healthy. B) It damages the heart. C) It has no effect on the heart. D) None of above. Show Answer Correct Answer: B) It damages the heart. 4. Which of the following is a way to keep your circulatory system healthy? A) Don't smoke. B) Exercise. C) Avoid stress. D) All of the above. Show Answer Correct Answer: D) All of the above. 5. The smallest blood vessels connecting the arteries and veins are the ..... A) Arteries. B) Veins. C) Capillaries. D) Aorta. Show Answer Correct Answer: C) Capillaries. 6. The outer layer of the heart is called the A) Pericardium. B) Myocardium. C) Epicardium. D) Endocardium. Show Answer Correct Answer: A) Pericardium. 7. Is a test used to detect blockages in the arteries or veins A) Angiography. B) Ultrasound. Show Answer Correct Answer: A) Angiography. 8. What 'waste product' is made by the body, carried by the blood back to the heart and lungs and breathed out by humans? A) Carbon Dioxide. B) Oxygen. C) Nitrogen. D) None of above. Show Answer Correct Answer: A) Carbon Dioxide. 9. Phloem is constructed of: A) Sieve tubes and companion cells. B) Ground tissue. C) Vessel elements. D) Rhizomes, which are underground stems. Show Answer Correct Answer: A) Sieve tubes and companion cells. 10. This type of blood vessel carries blood TO the heart A) Artery. B) Veins. C) Capillaries. D) Muscle. Show Answer Correct Answer: B) Veins. 11. Treatment for atherosclerosis and hypertension is eating a diet high in salt and fat A) True. B) False. Show Answer Correct Answer: B) False. 12. Upper chambers of the heart. A) Atriums. B) Ventricles. Show Answer Correct Answer: A) Atriums. 13. Blood is carried away from the heart to carry oxygen to the rest of the body by the: A) Arteries. B) Capillaries. C) Veins. D) Ventricles. Show Answer Correct Answer: A) Arteries. 14. Which of the following is the major organ of the Circulatory System? A) Heart. B) Brain. C) Stomach. D) Kidney. Show Answer Correct Answer: A) Heart. 15. Which activity is a function of the lymphatic system? A) Fight infections. B) Release hormones that control body functions. C) Transport oxygen and nutrients to cells in the body. D) Regulates the body's temperature. Show Answer Correct Answer: A) Fight infections. 16. The vessels that are specialized to carry blood back to the heart A) Arteries. B) Veins. C) Capillaries. D) Venules. Show Answer Correct Answer: B) Veins. 17. ..... fight bacteria, ward off disease and carry away waste. A) Blood antibodies. B) Plaque. C) Circulatory system. D) None of above. Show Answer Correct Answer: A) Blood antibodies. 18. What is the system responsible for transporting materials throughout the entire body? A) Circulatory system. B) Digestive system. C) Excretory system. D) Nervous system. Show Answer Correct Answer: A) Circulatory system. 19. COMPONENTS OF THE BLOOD:Formed elements that cause coagulation. A) Red blood cells. B) Plasma. C) Platelets. D) White blood cells. Show Answer Correct Answer: C) Platelets. 20. Transports deoxygenated blood to the lungs A) Pulmonary veins. B) Pulmonary arteries. Show Answer Correct Answer: B) Pulmonary arteries. ← 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