This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 306 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 306 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is it called when the atrium is beating irregularly? A) Bradycardia. B) Tachycardia. C) Atrial fibrillation. D) Ventricular fibrillation. Show Answer Correct Answer: C) Atrial fibrillation. 2. The ..... veins run through the neck and from the brain. A) Veins. B) Arteries. C) Jugular veins. D) Circle of Willis. Show Answer Correct Answer: C) Jugular veins. 3. Blood carries nutrients around your body and takes away waste. A) True. B) False. Show Answer Correct Answer: A) True. 4. Because oxygen is nonpolar, A) It must be absorbed by the lymphocytes. B) It must diffuse directly into the blood. C) It must be eliminated quickly. D) It must be carried by hemoglobin. Show Answer Correct Answer: D) It must be carried by hemoglobin. 5. If a person is medically diagnosed anemic, what blood components he/she lacks that is needed to adequately supply oxygen to the body tissues? A) Platelets. B) Plasma. C) RBC. D) WBC. Show Answer Correct Answer: C) RBC. 6. What happens in the left ventricle during Systemic Circulation? A) It carries oxygenated blood to the body's cells. B) It carries de-oxygenated blood to the body's cells. C) Oxygen and carbon dioxide are exchanged. D) The vessel brings blood to the lungs. Show Answer Correct Answer: A) It carries oxygenated blood to the body's cells. 7. The buildup of fatty deposits, or plaque, inside artery walls is called ..... A) High blood pressure. B) Atherosclerosis. C) Stroke. D) None of above. Show Answer Correct Answer: B) Atherosclerosis. 8. What is called the living pump of human body? A) Lungs. B) Kidneys. C) Heart. D) Liver. Show Answer Correct Answer: C) Heart. 9. Which antigens would exist on a RBC if a person was type O+? A) A and B antigens. B) O antigen. C) Rh antigen. D) A, B, and Rh antigens. Show Answer Correct Answer: C) Rh antigen. 10. The heart is about the size of a A) Afist. B) Bquarter. C) Cfootball. D) Ring finger. Show Answer Correct Answer: A) Afist. 11. What vein brings blood away from the kidney? A) Vena Cava. B) Hepatic Portal Vein. C) Renal. D) Pulmonary. Show Answer Correct Answer: C) Renal. 12. What triggers the respiratory system to start functioning? A) The Central Nervous System. B) The Heart. C) The Lungs. D) The Oxygen content of the air. Show Answer Correct Answer: A) The Central Nervous System. 13. The circulatory system has how many systems? A) 1. B) 3. C) 4. D) 2. Show Answer Correct Answer: D) 2. 14. The cella that float in the liquid make the blood red A) True. B) False. Show Answer Correct Answer: A) True. 15. When a person exercises, her heart beats ..... A) Faster because more oxygen and digested food are needed by muscles. B) Slower to conserve energy for the muscles. C) Faster to transport carbon dioxide to the muscles. D) Slower because more blood is needed by the heart. Show Answer Correct Answer: A) Faster because more oxygen and digested food are needed by muscles. 16. Fish are multi-celled organisms with specialized cells. What would most likely happen if their specialized cells did not function properly? A) The fish would increase in size. B) The fish would decrease in size. C) The fish would die. D) The fish would grow and thrive. Show Answer Correct Answer: C) The fish would die. 17. Intrinsic electrical impulses start at which of the following locations? A) AV Node. B) Bundle of His. C) Purkinje fibers. D) Because of the difference. Show Answer Correct Answer: D) Because of the difference. 18. What are the most important parts of the circulatory system? A) The heart blood and blood vessels. B) Bones and skull. Show Answer Correct Answer: A) The heart blood and blood vessels. 19. This measures the electrical impulses coming from the hear creating a graph of the output: A) EAG. B) ECG. C) EDG. D) EPG. Show Answer Correct Answer: B) ECG. 20. ..... stores bile between meals A) Liver. B) Pancreas. C) Stomach. D) Gallbladder. Show Answer Correct Answer: D) Gallbladder. ← 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