This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 84 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 84 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What blood vessel carries blood to the heart A) Vein. B) Artery. C) Capillary. D) All of the above. Show Answer Correct Answer: A) Vein. 2. What brings oxygen-poor blood from the top of the body, back to the heart? A) Superior vena cava. B) Left atrium. C) Inferior vena cava. D) Pulmonary veins. Show Answer Correct Answer: A) Superior vena cava. 3. This is another name for "high blood pressure" . When the force of blood is too high. A) Heart attack. B) Heart failure. C) Hypertension. D) Atherosclerosis. Show Answer Correct Answer: C) Hypertension. 4. Which blood vessel carries needed materials like oxygen and nutrients? A) Capillaries. B) Veins. C) Arteries. D) Heart. Show Answer Correct Answer: C) Arteries. 5. How many times your heart beats every day? A) 100 times/day. B) 10.000 times/day. C) 100.000 times/day. D) Uncountable. Show Answer Correct Answer: C) 100.000 times/day. 6. One of the main functions of the respiratory system is to feed all the ..... of the body oxygen. A) Alveoli. B) Lungs. C) Blood. D) Cells. Show Answer Correct Answer: D) Cells. 7. What happens when we inhale? A) The diaphragm relaxes, the volume of the lungs increases. B) The diaphragm relaxes, the volume of the lungs decreases. C) The diaphragm contracts, the volume of the lungs increases. D) The diaphragm contracts, the volume of the lungs decreases. Show Answer Correct Answer: C) The diaphragm contracts, the volume of the lungs increases. 8. Thinnest histologic layer of the heart A) Endocardium. B) Myocardium. C) Epicardium. D) None of above. Show Answer Correct Answer: A) Endocardium. 9. Which chamber in the heart pumps oxygen poor blood to the pulmonary artery? A) Right Ventricle. B) Left Ventricle. C) Aorta. D) Right Atrium. Show Answer Correct Answer: A) Right Ventricle. 10. Which of the following activities will cause a drop in the amount of carbon dioxide in the surrounding air? A) A boy cycling on his bike. B) A balsam plant making food. C) A man burning some logs. D) A girl taking an afternoon nap. Show Answer Correct Answer: B) A balsam plant making food. 11. Which chamber in the heart collects oxygen poor blood? A) Right Atrium. B) Right Ventricle. C) Left Atrium. D) Left Ventricle. Show Answer Correct Answer: A) Right Atrium. 12. Which system in the human body includes the heart, blood, arteries, and veins? A) Cardiovascular. B) Digestive. C) Muscular. D) Respiratory. Show Answer Correct Answer: A) Cardiovascular. 13. Blood returns to the heart from the lungs through what vessel? A) Aorta. B) Pulmonary veins. C) Pulmonary arteries. D) Inferior vena cava. Show Answer Correct Answer: B) Pulmonary veins. 14. Which of the following carries UNOXYGENATED blood? A) Aorta. B) Arterioles. C) Pulmonary arteries. D) Pulmonary veins. Show Answer Correct Answer: C) Pulmonary arteries. 15. Who is the best science teacher A) Miss rizqah. B) Miss rizqah. C) Miss rizqah. D) All of the above. Show Answer Correct Answer: D) All of the above. 16. To keep your heart healthy ..... A) Eat lots of doritos. B) Sitting on the couch watching tv all day. C) Walking or playing outside. D) Being an angry, unforgiving person. Show Answer Correct Answer: C) Walking or playing outside. 17. What organ system does the Circulatory system work with? A) Digestive. B) Excretory. C) Muscular. D) Skeletal. E) All of the above. Show Answer Correct Answer: E) All of the above. 18. During osmosis solute molecules move from ..... concentration of solution to ..... concentration of solution. A) Higher lower. B) Lower. Higher. C) None is none. D) None of above. Show Answer Correct Answer: B) Lower. Higher. 19. The HEART is similar to A) Delivery trucks. B) Pump/Motor. C) Roads. D) Truck stops. Show Answer Correct Answer: B) Pump/Motor. 20. It receives blood from various parts of the body. A) Atria. B) Artery. C) Ventricle. D) None of above. Show Answer Correct Answer: A) Atria. ← 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