This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 296 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 296 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which one helps with blood clotting? A) Red blood cells. B) Plasma. C) Platelets. D) None of above. Show Answer Correct Answer: C) Platelets. 2. If there is higher pressure in the aorta, there will be no movement of blood out of the ventricle A) True. B) False. Show Answer Correct Answer: A) True. 3. The pacemaker of the heart is A) A device to stabilize the heart. B) Sino-atrial Node in Right atrium. C) Sino-atrial Node in Medulla. D) None of the above. Show Answer Correct Answer: B) Sino-atrial Node in Right atrium. 4. Which of the following represents the proper direction of blood flow? A) From arteries to veins to capillaries. B) From arterioles to capillaries to venules. C) From capillaries to arterioles to arteries. D) From veins to venules to capillaries. Show Answer Correct Answer: B) From arterioles to capillaries to venules. 5. Sieve-tube cells and companion cells work together to transport sugar and nutrients inside plants. Together sieve-tube cells and companion cells form ..... A) A tissue. B) An organ. C) An organ system. D) Organism. Show Answer Correct Answer: A) A tissue. 6. Which of the following correctly shows the pathway of the blood through the heart? A) Vena cava$\rightarrow$ Right ventricle$\rightarrow$Pulmonary vein-$\rightarrow$Left ventricle. B) Vena cava$\rightarrow$ Pulmonary vein$\rightarrow$right atrium-$\rightarrow$ bicuspid valve. C) Vena cava $\rightarrow$ Bicuspid valve$\rightarrow$ Lungs$\rightarrow$Right ventricle. D) Aorta$\rightarrow$Left atrium$\rightarrow$bicuspid valve-$\rightarrow$Left ventricle. Show Answer Correct Answer: A) Vena cava$\rightarrow$ Right ventricle$\rightarrow$Pulmonary vein-$\rightarrow$Left ventricle. 7. Which valve sits between the lower right chamber and arteries leading to the lungs A) Pulmonary. B) Bicuspid. C) Aortic. D) Tricuspid. Show Answer Correct Answer: A) Pulmonary. 8. This system allows for movement of the body. A) Skeletal. B) Nervous. C) Muscular. D) Outgrowths. Show Answer Correct Answer: C) Muscular. 9. Arrhythmia A) Abnormal heart rhythm. B) Device that shocks the heart with electrical current to regain normal rhythm. C) Small, battery-powered device with electrodes to correct abnormal heart rhythm. D) None of above. Show Answer Correct Answer: A) Abnormal heart rhythm. 10. ..... carry blood from the body cells back to the heart. A) Heart. B) Capillaries. C) Veins. D) Arteries. Show Answer Correct Answer: C) Veins. 11. Which part of the blood contains a protein called hemoglobin that helps carry oxygen? A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: A) Red blood cells. 12. What are red blood cells also known as? A) Leucocytes. B) Thrombocytes. C) Erythrocytes. D) None of above. Show Answer Correct Answer: C) Erythrocytes. 13. What is Part H? A) Left ventricle. B) Left atrium. C) Right atrium. D) Right ventricle. Show Answer Correct Answer: A) Left ventricle. 14. What is the main organ for respiratory system? A) Liver. B) Heart. C) Lungs. D) Pancreas. Show Answer Correct Answer: C) Lungs. 15. The largest artery in the body is called the ..... A) Pulmonary artery. B) Vena cava. C) Carotid artery. D) Aorta. Show Answer Correct Answer: D) Aorta. 16. Oxygen-rich blood from (BLANK) enters (BLANK) atrium and then (BLANK) ventricle. A) 1. Lungs2. Left 3. Right. B) 1. Lungs 2. Right 3. Right. C) 1. Heart2. Left 3. Left. D) 1. Lungs2. Left3. Left. Show Answer Correct Answer: D) 1. Lungs2. Left3. Left. 17. Carries blood from the lungs to the left atrium A) Four pulmonary veins. B) Inferior vena cava. C) Superior vena cava. D) Pulmonary trunk. Show Answer Correct Answer: A) Four pulmonary veins. 18. What two organ systems are involved in the transfer of oxygen to the cells from outside the body? A) Skeletal and digestive. B) Skeletal and respiratory. C) Circulatory and digestive. D) Circulatory and respiratory. Show Answer Correct Answer: D) Circulatory and respiratory. 19. How many chambers in human heart? A) One. B) Two. C) Three. D) Four. Show Answer Correct Answer: D) Four. 20. What happens to blood in the walls of your lungs? A) Carbon dioxide is exchanged for oxygen. B) Oxygen is exchanged for carbon dioxide. C) Both oxygen and carbon dioxide are added to the blood. D) Both oxygen and carbon dioxide are removed from the blood. Show Answer Correct Answer: A) Carbon dioxide is exchanged for oxygen. ← 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