This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 283 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 283 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Blood flows into the ..... from the vena cava (the main vein) or the pulmonary vein. A) Atrium. B) Ventricle. C) Aorta. D) Pulmonary artery. Show Answer Correct Answer: A) Atrium. 2. The heart is an important organ because A) Takes oxygen from the air. B) Pumps blood. C) The digestion process. D) None of above. Show Answer Correct Answer: B) Pumps blood. 3. Blood vessels that carry blood away from the heart A) Veins. B) Arteries. C) Capillaries. D) Synapses. Show Answer Correct Answer: B) Arteries. 4. Which is not true of blood? A) It is a mixture. B) It brings everything to the cell it needs. C) It is part of the digestive system. D) It takes away waste materials from the cell. Show Answer Correct Answer: C) It is part of the digestive system. 5. Which blood vessels carry oxyganeted blood? A) Veins. B) Arteries. Show Answer Correct Answer: B) Arteries. 6. What chamber of the heart pumps blood to the lungs? A) Left Atrium. B) Left Ventricle. C) Right Atrium. D) Right Ventricle. Show Answer Correct Answer: D) Right Ventricle. 7. This chamber pumps the oxygen-rich blood to all parts of the body. A) Right Ventricle. B) Left Ventricle. C) Right Atrium. D) Left Atrium. Show Answer Correct Answer: B) Left Ventricle. 8. The ..... chambers of the heart are the right and left atrium. A) Upper. B) Lower. C) Separate. D) Four. Show Answer Correct Answer: A) Upper. 9. Which of the following is NOT a layer of blood? A) Erythrocytes. B) Buffy Layer. C) Plasma. D) Antibodies. Show Answer Correct Answer: D) Antibodies. 10. This is the liquid portion of blood: A) Cytoplasm. B) Plasma. C) Hydrochloric acid. D) Glucose. Show Answer Correct Answer: B) Plasma. 11. Smallest and thinnest blood vessels. they connect arteries and veins A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 12. Dilat/o A) To widen. B) Blood condition. C) Listen to. D) To widen. Show Answer Correct Answer: A) To widen. 13. (a) takes carbon dioxide and waste towards the heart. A) A Veins. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) A Veins. 14. Which of the following carries oxygen and nutrients from arteries to the tissues? A) Veins. B) The aorta. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 15. Number of heart chambers A) 2. B) 4. C) 3. D) 5. Show Answer Correct Answer: B) 4. 16. This circuit of the circulatory system strictly provides blood to the heart. A) Pulmonary circuit. B) Systemic circuit. C) Coronary circuit. D) None of above. Show Answer Correct Answer: C) Coronary circuit. 17. The circulatory system removes following waste gas from our body: A) Carbon-dioxide. B) Nitrogen. Show Answer Correct Answer: A) Carbon-dioxide. 18. Where is oxygen transferred to the bloodstream? A) In the alveoli. B) In the diaphragm. C) In the intestines. D) In the bronchis. Show Answer Correct Answer: A) In the alveoli. 19. From the body ..... blood then travels back to the heart through small capillaries then to the ..... and back to the heart through larger veins. A) Deoxygenated, Aorta. B) Oxygenated, Aorta. C) Oxygenated, Lungs. D) Deoxygenated, Lungs. Show Answer Correct Answer: D) Deoxygenated, Lungs. 20. In performing life processes, the cells produce waste materials. These materials is known as ..... A) Metabolic Blood. B) Metabolic Wastes. C) Metabolism. D) Methamphetamines'. Show Answer Correct Answer: B) Metabolic Wastes. ← 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