This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 665 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 665 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is an organ system that permits blood to circulate and transport nutrients, oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases and stabilize temperature. A) Respiratory System. B) Circulatory System. Show Answer Correct Answer: B) Circulatory System. 2. Blood that leaves the LEFT side of the heart is pumped to: A) The body. B) The lungs. C) The right side of the heart. D) None of the above. Show Answer Correct Answer: A) The body. 3. What's the shape of the human heart? A) A car. B) A man's fist. C) A man's foot. D) None of above. Show Answer Correct Answer: B) A man's fist. 4. The human heart is about the size of your fist. True or False? A) True. B) False. Show Answer Correct Answer: A) True. 5. Which of the following is not true about veins? A) They usually carry deoxygenated blood. B) They contain valves. C) They usually carry blood away from the heart. D) They are thin walled. Show Answer Correct Answer: C) They usually carry blood away from the heart. 6. Ameba shows..... for circulation of substances with in the cell. For movement of substances inside the amoeba cell ..... shows A) Brownian movement. B) Flagellar movement. C) Ciliary movement style dream movement. D) Pseidopodial movement Median foot movement. Show Answer Correct Answer: A) Brownian movement. 7. Valve that connects left ventricle to aorta A) Mitral or Bicuspid. B) Aortic. C) Pulmonary. D) Tricuspid. Show Answer Correct Answer: B) Aortic. 8. Which blood vessel carries blood toward the heart? A) Veins. B) Capillaries. C) Arteries. D) None of above. Show Answer Correct Answer: A) Veins. 9. Diastolic pressure is the pressure that occurs when blood..... A) Out of the atrium of the heart. B) Into the heart chamber. C) Out of the heart. D) Out of the heart chamber. E) Enters the atrium of the heart. Show Answer Correct Answer: E) Enters the atrium of the heart. 10. Which structure of the heart that prevents the oxygen-rich blood from mixing with oxygen-poor blood? A) Atria. B) Septum. C) Valves. D) Ventricles. Show Answer Correct Answer: B) Septum. 11. This blood product makes up 55% of the total blood volume. A) Proteins. B) RBCs. C) WBCs. D) Plasma. Show Answer Correct Answer: D) Plasma. 12. ..... clot blood to help stop bleeding. A) White blood cells. B) Red Blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: D) Platelets. 13. Why do ventricles have thick, muscular walls? A) They must pump blood up the atria. B) They are made of skeletal muscle. C) They must pump blood to the lungs and out to the body. D) None of above. Show Answer Correct Answer: C) They must pump blood to the lungs and out to the body. 14. Body system that circulates blood through the body A) Heart System. B) Blood System. C) Movement. D) Circulatory System. Show Answer Correct Answer: D) Circulatory System. 15. Which of the following is the bottom portion of the heart A) Atrium. B) Ventricle. C) Artery. D) Vein. Show Answer Correct Answer: B) Ventricle. 16. Arteries supply blood from your ..... to your ..... A) Heart, body. B) Body, heart. Show Answer Correct Answer: A) Heart, body. 17. Which blood group is universal donor? A) AB. B) A. C) B. D) O. Show Answer Correct Answer: D) O. 18. What part of the heart delivers unoxygenated blood to the lungs? A) Pulmonary artery. B) Pulmonary Vein. C) Aorta. D) Left Ventricle. Show Answer Correct Answer: A) Pulmonary artery. 19. Pericardium is the internal membrane A) True. B) False. Show Answer Correct Answer: B) False. 20. What is the final stop of the electrical conduction pathway? A) Bundle of His. B) Right and Left Bundle Branches. C) Purkinje Fibers. D) AV Node. Show Answer Correct Answer: C) Purkinje Fibers. ← 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