This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 591 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 591 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the veins responsible for? A) Carrying blood away from the heart. B) Providing oxygen for the body. C) Carrying blood to the heart. D) Carrying blood to the brain. Show Answer Correct Answer: C) Carrying blood to the heart. 2. A patient went to the doctor because of extreme fatigue. Upon laboratory study, the doctor tells the patient that she has low iron. The medical term for this disorder is: A) Arteriosclerosis. B) Anemia. C) Aneurysm. D) Atherosclerosis. Show Answer Correct Answer: B) Anemia. 3. Which of these are NOT one of the 4 components of blood? A) Oxygen. B) Plasma. C) Platelets. D) Red blood cells. Show Answer Correct Answer: A) Oxygen. 4. Which type of blood is carried by pulmonary veins? A) Carbon dioxide rich blood. B) Oxygen rich blood. C) Carbon dioxide and oxygen rich blood. D) None of these. Show Answer Correct Answer: B) Oxygen rich blood. 5. Liquid portion of blood that contains mostly water and many dissolved substances A) Plasma. B) Erythrocytes. C) Leukocytes. D) Thrombocytes. Show Answer Correct Answer: A) Plasma. 6. Deoxygenated blood is present on which side of the heart? A) Top. B) Left. C) Right. D) Bottom. Show Answer Correct Answer: C) Right. 7. Which organ pumps the blood through your body? A) Arteries. B) Capillaries. C) Veins. D) Heart. Show Answer Correct Answer: D) Heart. 8. What are thrombocythes? A) Heart vessels. B) Platelets. C) White blood cells. D) Pulmonary vein. Show Answer Correct Answer: B) Platelets. 9. Which of the following organs produce the cellular components of the blood? A) Kidney. B) Heart. C) Bone Marrow. D) None of above. Show Answer Correct Answer: C) Bone Marrow. 10. These valves are guarded by tendons $\rightarrow$ chordae tendineae A) Heart wall (3). B) Heart room. C) Heart valves (3). D) Cardiac nerves (3). Show Answer Correct Answer: C) Heart valves (3). 11. The circulatory system consists of the heart, blood vessels and ..... A) Blood. B) Oxygen. C) Nutrients. D) Cells. Show Answer Correct Answer: A) Blood. 12. What is the circulatory system made out of? A) Heart, lungs and blood vessels. B) Heart, ribcage and blood vessels. C) Lungs, heart and ribcage. D) Veins, capillaries and heart. Show Answer Correct Answer: A) Heart, lungs and blood vessels. 13. All of the following are parts of the circulatory system except A) Blood vessels. B) Lungs. C) Heart. D) Blood. Show Answer Correct Answer: B) Lungs. 14. The ..... system sends blood through the body. A) Circulatory. B) Blood. C) Kidney. D) None of above. Show Answer Correct Answer: A) Circulatory. 15. Who can donate blood to type O? A) All types. B) O. C) AB. D) A. Show Answer Correct Answer: B) O. 16. What are the structural characteristics of veins? A) Narrow lumen, thick wall, no valves. B) Wide lumen, thin wall, have valves. C) Very thin walled, permeable. D) None of the above. Show Answer Correct Answer: B) Wide lumen, thin wall, have valves. 17. Vein walls are A) Very thick. B) Thin. C) Very thin (only 1 layer of cell). D) None of above. Show Answer Correct Answer: B) Thin. 18. The ..... separate the left atrium and the left ventricle A) Semilunar valve. B) Tricuspid valve. C) Bicuspid valve. D) Aortic valve. Show Answer Correct Answer: C) Bicuspid valve. 19. Which of the following is NOT a part of the respiratory system? A) Lungs. B) Blood. C) Bronchioles. D) Larynx. Show Answer Correct Answer: B) Blood. 20. Damage to the medulla would most likely result in A) Impaired planning abilities. B) Death. C) A coma. D) Blindness. Show Answer Correct Answer: B) Death. ← 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