This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 127 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 127 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. It is the SMALLEST blood vessel in our body. A) Artery. B) Vein. C) Capillary. D) Duct. Show Answer Correct Answer: C) Capillary. 2. Waste carried by the blood includes dead blood cells. A) True. B) False. Show Answer Correct Answer: A) True. 3. The function of thrombocytes is to? A) Fight infections. B) Carry oxygen. C) Carry carbon dioxide. D) Aid in the clotting process. Show Answer Correct Answer: D) Aid in the clotting process. 4. At the vein end of a capillary, the blood pressure is ..... A) Higher, forcing fluids and small molecules out. B) Lower, drawing fluids and wastes in. Show Answer Correct Answer: B) Lower, drawing fluids and wastes in. 5. Vessels that allow oxygen and nutrients to pass through to cells are? A) Capillaries. B) Arterioles. C) Arteries. D) Blood proteins. Show Answer Correct Answer: A) Capillaries. 6. What is the function of blood vessels? A) Pumps blood to the lungs and the whole body. B) Exchange of oxygen and carbon dioxide. C) Transport blood to the whole body. D) None of above. Show Answer Correct Answer: C) Transport blood to the whole body. 7. When taking blood pressure this is the highest pressure against blood vessels. A) Diastolic pressure. B) Systolic pressure. C) Hypotension. D) Hyperstension. Show Answer Correct Answer: B) Systolic pressure. 8. Can a person survive a heart attack? A) Yes. B) No. Show Answer Correct Answer: A) Yes. 9. Which of the following is NOT one of the chambers of the heart A) Right Atrium. B) Left Ventricle. C) Aorta. D) Left Atrium. Show Answer Correct Answer: C) Aorta. 10. The function of an artery is to: A) Carry blood away from the heart. B) Where materials are exchanged between arteries and veins. C) Carries deoxygenated blood toward the heart. D) None of above. Show Answer Correct Answer: A) Carry blood away from the heart. 11. Which best describes a function of the circulatory system? A) Transport Blood. B) Provide Oxygen. C) Help the body move. D) None of above. Show Answer Correct Answer: A) Transport Blood. 12. The heart is about the size of a fist. A) True. B) False. Show Answer Correct Answer: A) True. 13. A cluster of air sacs in the lungs is called a(n) ..... A) Septum. B) Aorta. C) Bronchiole. D) Alveolus. Show Answer Correct Answer: D) Alveolus. 14. Deoxygenated blood enters the heart through the ..... A) Pulmonary Veins. B) Superior/Inferior Vena Cava. C) Aorta. D) Left Atrium. Show Answer Correct Answer: B) Superior/Inferior Vena Cava. 15. Which blood vessel has valves that prevent blood from moving in the wrong direction? A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 16. Which of the following best describes red blood cells? A) A yellow liquid that carries cells, carbon dioxide & soluble food molecules. B) Cells packed with haemoglobin that carries oxygen. C) Cells that fight disease by ingesting pathogens & making antibodies. D) Cells that help blood to clot & help form a scab over a cut. Show Answer Correct Answer: B) Cells packed with haemoglobin that carries oxygen. 17. What heart chamber sends deoxygenated blood into the pulmonary artery? A) Right atrium. B) Right ventricle. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: B) Right ventricle. 18. True or FalseExcept for the pulmonary artery, all arteries transport oxygen rich blood from veins. A) True. B) False. Show Answer Correct Answer: A) True. 19. "There is no nucleus. Created from bone marrow and lasts 7-10 days." What does it mean? A) White blood cells. B) Red blood cells. C) Blood or plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 20. Why does the blood travel to the digestive system? A) To collect nutrients from the food you have eaten. B) To see how much food is in your stomach. C) To carry waste from your liver. D) To stop you from having gas. Show Answer Correct Answer: A) To collect nutrients from the food you have eaten. ← 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