This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 436 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 436 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Spasm of the diaphragm A) Cough. B) Sneeze. C) Hiccup. D) Yawn. Show Answer Correct Answer: C) Hiccup. 2. Is the circulatory system inportent A) True. B) False. Show Answer Correct Answer: A) True. 3. What is the main function of the endothelial cells in capillaries? A) To prevent backflow of low pressure blood. B) To control blood flow by vasoconstriction/vasodilation. C) To link arteries to veins. D) To allow exchange of materials with tissues. Show Answer Correct Answer: D) To allow exchange of materials with tissues. 4. The blood vessels that carry deoxygenated blood to the heart are A) The pulmonary veins. B) The pulmonary arteries. C) The cava veins. D) None of above. Show Answer Correct Answer: C) The cava veins. 5. Specialized cells that trap light on top of the leaf are called ..... cells A) Stem. B) Root. C) Stomata. D) Palisade mesophyll. Show Answer Correct Answer: D) Palisade mesophyll. 6. What is number 1 labelling? A) Left atrium. B) Left ventricle. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: C) Right atrium. 7. How is oxygen transported in the blood? A) Binding to haemoglobin in red blood cells. B) Binding to haemoglobin in white blood cells. C) Dissolving in plasma. D) Transported by platelets. Show Answer Correct Answer: A) Binding to haemoglobin in red blood cells. 8. The part of the heart that sets the pace for cardiac activity and initiates a heartbeat is the: A) Atrioventricular node (AV). B) Sinoatrial node (SA). C) Purkinje Fibers. D) Bundle of His. Show Answer Correct Answer: B) Sinoatrial node (SA). 9. Which of these WBCs releases histamine & is involved in allergic reactions? A) Eosinophil. B) Basophil. C) Neutrophil. D) Monocyte. Show Answer Correct Answer: B) Basophil. 10. The pulmonary vein carries blood from the ..... ? A) Heart to the lungs. B) Lungs to the body. C) Lungs to the heart. D) Body to the heart. Show Answer Correct Answer: C) Lungs to the heart. 11. The ..... fills with blood and then dump into the ..... A) Atria / ventricle. B) Ventricle /atria. Show Answer Correct Answer: A) Atria / ventricle. 12. The CIRCULATORY SYSTEM circulates OXYGEN and removes Carbon Dioxide. A) False. B) True. Show Answer Correct Answer: B) True. 13. In which order does the blood pass from the body through the heart chambers? A) Left atrium-left ventricle-lungs-right atrium-right ventricle. B) Left atrium-right atrium-lungs-left ventricle-right ventricle. C) Right atrium-left atrium-lungs-right ventricle-left ventricle. D) Right atrium-right ventricle-lungs-left atrium-left ventricle. Show Answer Correct Answer: D) Right atrium-right ventricle-lungs-left atrium-left ventricle. 14. Heart is divided vertically into a left and right portion by sectum. A) True. B) False. Show Answer Correct Answer: B) False. 15. What antigens are present in a person with AB-blood? A) A, B, and Rh. B) Rh, only. C) A and B. D) No antigens. Show Answer Correct Answer: C) A and B. 16. Our heart beats quickly when we exercise because it pumps blood quickly. A) True. B) False. Show Answer Correct Answer: A) True. 17. With circulation, the heart provides your body with: A) A way to transport oxygen to body cells. B) A way to transport nutrients to body cells. C) A way to transport carbon dioxide to the lungs. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. All of the following are a part of the circulatory system except A) Veins. B) Lungs. C) Capillaries. D) Arteries. Show Answer Correct Answer: B) Lungs. 19. Cardiac output is calculated by multiplying stroke volume by the systolic blood pressure. A) True. B) False. Show Answer Correct Answer: B) False. 20. What is the term used to describe the cessation of bleeding? A) Hemostasis. B) Hemostatic. C) Blood Blocker. D) Hematology. Show Answer Correct Answer: A) Hemostasis. ← 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