This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 599 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 599 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Breathing requires pressure change. A) True. B) False. Show Answer Correct Answer: A) True. 2. Leaves blood and becomes a macrophage which eats bacteria, dead cells, cell fragments and other debris A) Monocyte. B) Thrombocyte (platelets). C) Plasma. D) Water. E) Water. Show Answer Correct Answer: A) Monocyte. 3. With less oxygen as altitude increases, what is the immediate effect of high altitude on the cardiovascular system? A) Increase in heart rate for a faster exchange of O2 and CO2. B) Increase in the number of erythrocytes. C) Decrease in heart rate to slow down the exchange of O2 and CO2. D) Decrease in the number of erythrocytes. Show Answer Correct Answer: A) Increase in heart rate for a faster exchange of O2 and CO2. 4. Which blood group is the universal donor? A) A. B) B. C) O. D) AB. Show Answer Correct Answer: C) O. 5. Has B antigens on the surface of the red blood cells and A antibodies in the blood plasma A) Type B. B) Type AB. C) Type O. D) Transfusion. E) Transfusion. Show Answer Correct Answer: A) Type B. 6. What is the function of the Vena Cava in the heart's blood circulation process? A) It pumps blood out of the heart to the lungs. B) It carries oxygen-rich blood from the lungs to the heart. C) It carries blood from all over the body back to the heart. D) It prevents blood from passing back into the Right Atrium. Show Answer Correct Answer: C) It carries blood from all over the body back to the heart. 7. Both the superior & inferior vena cava carry blood in to the A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: A) Right atrium. 8. Heart (right ventricle) $\rightarrow$ lungs $\rightarrow$ heart (left atrium) A) Large blood circulation. B) Little blood circulation. Show Answer Correct Answer: B) Little blood circulation. 9. The type of vessel carries blood to the heart A) Vein. B) Nerve. C) Muscle. D) Artery. Show Answer Correct Answer: A) Vein. 10. In the lungs, tiny tubes that split off from the bronchial tubes A) Capillaries. B) Cartilage rings. C) Bronchioles. D) None of above. Show Answer Correct Answer: C) Bronchioles. 11. The left side pumps blood to the rest of the body. A) True. B) False. Show Answer Correct Answer: A) True. 12. These are blood vessels that carry blood TO the heart. A) Atria. B) Arteries. C) Veins. D) Ventricles. Show Answer Correct Answer: C) Veins. 13. What structure carry the blood to the heart? A) Aorta. B) Blood. C) Arteries. D) Veins. Show Answer Correct Answer: D) Veins. 14. The pacemaker of the heart A) AV node. B) Because of the difference. C) Bundle of His. D) Bundle branches. Show Answer Correct Answer: B) Because of the difference. 15. They are known as the receiving chambers of the heart. A) Atria. B) Ventricles. C) Valves. D) None of above. Show Answer Correct Answer: A) Atria. 16. Which artery takes blood from the heart to the lungs? A) Pulmonary Artery. B) Coronary Artery. C) Renal Artery. D) Hepatic Artery. Show Answer Correct Answer: A) Pulmonary Artery. 17. Why is it necessary that humans have bones in their body? A) Bones aid in the protection of our soft organs, such as the heart, lungs, and brain. B) Bones produce red and white blood cells, within which red blood cells provide oxygen throughout the body, and white blood cells attack antigens in our body. C) Bone provide the basic structure of the skeletal system in our body. D) All of the answers are correct. Show Answer Correct Answer: D) All of the answers are correct. 18. Choose the complete and logical food chain. A) Sun $\rightarrow$ plant $\rightarrow$ rabbit $\rightarrow$ eagle. B) Deer $\rightarrow$ squirrel $\rightarrow$ plant $\rightarrow$ sun. C) Sun $\rightarrow$ deer $\rightarrow$ plant $\rightarrow$ eagle. D) Eagle $\rightarrow$ squirrel $\rightarrow$ rabbit $\rightarrow$ plant $\rightarrow$ eagle. Show Answer Correct Answer: A) Sun $\rightarrow$ plant $\rightarrow$ rabbit $\rightarrow$ eagle. 19. What is the job of the red blood cells? A) Transport oxygen using hemoglobin. B) Transport oxygen using glucose. C) Biconcave shape. D) Flight infection. Show Answer Correct Answer: A) Transport oxygen using hemoglobin. 20. What body systems work together to acquire (GET) oxygen into the body? A) Muscular system only. B) Respiratory and Muscular. C) Respiratory and Skeletal. D) Respiratory & Integumentary. Show Answer Correct Answer: B) Respiratory and Muscular. ← 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