This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 635 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 635 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The heart valves could do except A) Separate atrium and ventricle. B) Kepp the blood flowing forward. C) Regulate the heart contraction. D) Includes the mitral valve and tricuspid valve. Show Answer Correct Answer: C) Regulate the heart contraction. 2. If the sinoatrial node (pacemaker) of the heart is not working right, it can make ..... happen. A) Tetanus. B) Fibrillation. C) Normal heartbeats. D) A heart attack. Show Answer Correct Answer: B) Fibrillation. 3. Carries blood from the heart to the tissues A) Arteries (pulses). B) Venous Catheter (Back). Show Answer Correct Answer: A) Arteries (pulses). 4. Which is the type of circulation that refers to the blood flowing through the entire body and back to the heart? A) Systemic circulation. B) Renal circulation. C) Portal circulation. D) Pulmonary circulation. Show Answer Correct Answer: A) Systemic circulation. 5. True or False:Your red blood cells multiply in order to fight off infection and disease. A) True. B) False. Show Answer Correct Answer: B) False. 6. Define Red Blood Cell A) The muscular organ of an animal that pumps blood throughout the body. B) Blood vessels that carry blood toward the heart. C) A blood cell that carries oxygen to other cells in the body. D) A blood cell that helps fight germs and diseases. Show Answer Correct Answer: C) A blood cell that carries oxygen to other cells in the body. 7. Our heart rate depends on our AGE, HEALTH and the type of EXERCISE we are doing. A) True. B) False. Show Answer Correct Answer: B) False. 8. Lower line flow into right atrium through inferior vena cava A) True. B) False. Show Answer Correct Answer: A) True. 9. What do you call the smallest Artery? A) Aorta. B) Capillary. C) Arterioles. D) Pulmonary Artery. Show Answer Correct Answer: C) Arterioles. 10. What comes before the stomach? A) Large Intestine. B) Small Intestine. C) Esophagus. D) Kidney. Show Answer Correct Answer: C) Esophagus. 11. What blood vessels carry deoxygenated blood from the body to the heart? A) Pulmonary Arteries. B) Pulmonary Veins. C) Aorta. D) Superior and Inferior Vena Cava. Show Answer Correct Answer: D) Superior and Inferior Vena Cava. 12. Tubes that move air from the trachea to the lungs. A) Alveoli. B) Bronchi. C) Veins. D) Arteries. Show Answer Correct Answer: B) Bronchi. 13. Pulmonary veins bring blood from the ..... to the heart. A) Small intestine. B) Liver. C) Lungs. D) None of above. Show Answer Correct Answer: C) Lungs. 14. What vocabulary word means a lower chamber of the heart that pumps blood out to the lungs and body? A) Atrium. B) Ventricle. C) Septum. D) Valve. Show Answer Correct Answer: B) Ventricle. 15. Where deoxygenated blood enters the heart from the upper part of the heart A) Superior Vena Cava. B) Inferior Vena Cava. C) Pulmonary Vein. D) None of above. Show Answer Correct Answer: A) Superior Vena Cava. 16. What is the protein in red blood cells called? A) Plasma. B) Platelets. C) Hemoglobin. D) Fibrin. Show Answer Correct Answer: C) Hemoglobin. 17. Which two gases are exchanged at the lungs? A) Carbon dioxide & oxygen. B) Oxygen & nitrogen. C) Carbon monoxide & nitrogen. D) Carbon dioxide & carbon monoxide. Show Answer Correct Answer: A) Carbon dioxide & oxygen. 18. What does the word part Oste/o mean? A) Hard. B) Skin. C) Cardio. D) Bone. Show Answer Correct Answer: D) Bone. 19. Arteries have thicker walls then veins as A) They carry blood in one direction. B) They carry oxygenated blood. C) They carry blood under high pressure. D) Both option 3 and 4 are correct. Show Answer Correct Answer: D) Both option 3 and 4 are correct. 20. Which of the following is called the graveyard of RBCs? A) Thrombocytes. B) Lymph. C) Liver. D) Spleen. Show Answer Correct Answer: D) Spleen. ← 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