This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 338 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 338 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the function of the pulmonary veins? A) Carry oxygen-poor blood to the lungs. B) Carry oxygen-rich blood to the heart from the lungs. C) Carry oxygen-poor blood to the heart from the body. D) Carry oxygen-rich blood to the body from the heart. Show Answer Correct Answer: B) Carry oxygen-rich blood to the heart from the lungs. 2. What is the technique called of mechanically widening a narrowed or obstructed vessel; typically a result of plaque buildup? A) Vesselectomy. B) Angioplasty. C) Aneurysm. D) Vessel transplant. Show Answer Correct Answer: B) Angioplasty. 3. Less muscualr. Transports blood TO the heart A) Veins. B) Capillaries. C) Arteries. D) None of above. Show Answer Correct Answer: A) Veins. 4. What is the purpose of the circulatory system? A) To provide you with oxygen and remove carbon dioxide. B) To keep your lungs full of air. C) To send nerve signals to the brain. D) None of above. Show Answer Correct Answer: A) To provide you with oxygen and remove carbon dioxide. 5. The flow of blood within the heart itself is called ..... A) Systemic circulation. B) Coronary circulation. C) Pulmonary circulation. D) None of above. Show Answer Correct Answer: B) Coronary circulation. 6. What does blood pick up when going through the digestive system? A) Oxygen. B) Nutrients. C) Hormones. D) None of above. Show Answer Correct Answer: B) Nutrients. 7. Artery differs from vein in having: A) Narrow wall. B) Thick walls. C) Valves. D) None of the above. Show Answer Correct Answer: B) Thick walls. 8. The top number in a blood pressure reading is also called the ..... number A) Diastolic. B) Systolic. C) Pulse pressure. D) Hypertension. Show Answer Correct Answer: B) Systolic. 9. Capillaries allow exchange of material and gas A) False. B) True. Show Answer Correct Answer: B) True. 10. What organ does oxygen begin to enter the blood stream? A) Nasal cavity. B) Lungs. C) Bronchioles. D) Alveoli. Show Answer Correct Answer: D) Alveoli. 11. As their name implies, the heart chambers that receiveblood returning through both circulatory circuits are called: A) Auricles. B) Atria. C) Ventricles. D) Sinuses. Show Answer Correct Answer: B) Atria. 12. What is the correlation between altitude and Red Blood Cell count? A) At a higher altitude, RBC number will increase immediately. B) At a higher altitude, RBC number will increase in a matter of months. C) At a lower altitude, RBC number will increase, although not immediately. D) At a lower altitude, RBC number will increase in a matter of months. Show Answer Correct Answer: B) At a higher altitude, RBC number will increase in a matter of months. 13. The blood vessels that carry deoxygenated blood from the body to the heart are: A) Arteries. B) Arterioles. C) Capillaries. D) Veins. Show Answer Correct Answer: D) Veins. 14. Where is the blood pumped, when the muscular walls contract? A) Veins. B) Capillaries. C) Arteries. D) Valves. Show Answer Correct Answer: C) Arteries. 15. The Heart has how many chambers? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: D) 4. 16. ..... are tiny blood vessels that carry blood to an from almost all body cells and connect arteries and veins. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 17. The left ventricle has the thickest muscle wall since ..... A) It need to pump the blood to the 2 lungs. B) It need to pump the blood to the whole body. C) It need to pump the blood to the digestive system. D) It parasites in human body and take nutritions in it. Show Answer Correct Answer: B) It need to pump the blood to the whole body. 18. What antibodies can be found when someone has blood type A? A) None. B) A. C) B. D) A and B. Show Answer Correct Answer: C) B. 19. Which of the following structures have a role in transporting substances in animals? A) Arteries & veins. B) Arteries and xylem. C) Veins and phloem. D) Xylem & phloem. Show Answer Correct Answer: A) Arteries & veins. 20. Electrical stimulation throughout the ventricles is delivered by the: A) AV node. B) Purkinje fibers. C) Bundle of His. D) Because of the difference. Show Answer Correct Answer: B) 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