This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 438 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 438 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which chambers contract during the first part of the Cardiac Cycle? A) Left & right ventricles. B) Left & right atria. C) Left atrium & ventricle. D) Right atrium & ventricle. Show Answer Correct Answer: B) Left & right atria. 2. What is the final destination of the blood in the circulatory system? A) Heart. B) Lungs. C) Brain. D) Arms and legs. Show Answer Correct Answer: A) Heart. 3. Blood passing through the Pulmonary Valve is: A) Oxygenated. B) Deoxygenated. Show Answer Correct Answer: B) Deoxygenated. 4. Ventricles have (blank) walls compared to the atria A) Thicker. B) Thinner. Show Answer Correct Answer: A) Thicker. 5. Ischemia A) Restricted blood flow. B) Excessive bleeding. C) Pertaining to the pelvis. D) Pertaining to the lower leg. Show Answer Correct Answer: A) Restricted blood flow. 6. Vessels that move deoxygenated (low oxygen) are called A) Veins. B) Arteries. C) Capillaries. D) Ventricles. Show Answer Correct Answer: A) Veins. 7. The heart is a very strong ..... A) Muscle. B) Arm. C) Lung. D) Stomach. Show Answer Correct Answer: A) Muscle. 8. What are blood vessels that carry blood from the body back to the heart (de-oxygenated blood)? A) Arteries. B) Capillaries. C) Veins. D) None of above. Show Answer Correct Answer: C) Veins. 9. Match each section of the respiratory system to its characteristics or definition Bronchi A) Flap of skin to cover when you swallow. B) Air moves down the Trachea. C) This is where the trachea dives into 2). D) Are filled with small alveoli and oxygen and carbon dioxide swap places. This area is like a sponge. Show Answer Correct Answer: C) This is where the trachea dives into 2). 10. What is label "2" ? A) Right ventricle. B) Aorta. C) Inferior vena cava. D) Left atrium. E) Left ventricle. Show Answer Correct Answer: A) Right ventricle. 11. The job of the heart is to pump blood to the body. A) True. B) False. Show Answer Correct Answer: A) True. 12. ..... are the smallest blood vessels and where all exchanges between blood and cells occurs. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 13. How is the heart depicted in the picture in terms of sides? A) Left side is shown on the right. B) Right side is shown on the right. C) Both sides are shown accurately. D) Left side is shown on the left. Show Answer Correct Answer: C) Both sides are shown accurately. 14. The circulatory system has important functions. What is one of its jobs? A) Gets nutrients out of the food you eat. B) Carries blood all over your body. C) Lets your body move. D) Carries messages through your spinal cord to your brain. Show Answer Correct Answer: B) Carries blood all over your body. 15. Whose job is it to fight bacteria, viruses and other harmful substances the body sees as a threat? A) White blood cells. B) Red blood cells. C) Hemoglobin. D) Platelets. Show Answer Correct Answer: A) White blood cells. 16. Where in the lungs are carbon dioxide and oxygen exchanged? A) Alveoli. B) Bronchi. C) Bronchioles. D) None of above. Show Answer Correct Answer: A) Alveoli. 17. Our blood only contains red cells A) True. B) False. Show Answer Correct Answer: B) False. 18. What am I? I am the middle layer of an artery or vein A) Outer tunic. B) Tunica media. C) Intimate tunic. D) None of above. Show Answer Correct Answer: B) Tunica media. 19. These are tiny blood vessels in your body that exchange oxygen and carbon dioxide. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 20. ..... returns blood from the upper body. A) Inferior vena cava. B) Superior vena cava. C) Vena cava. D) Aorta. Show Answer Correct Answer: B) Superior vena cava. ← 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