This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 645 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 645 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a patient has low oxygen levels, which blood component could they possibly have low numbers of? A) Leukocytes (WBC's). B) Erythrocytes (RBC's). C) Thrombocytes (Platelets). D) Plasma. Show Answer Correct Answer: B) Erythrocytes (RBC's). 2. Oxygenated blood pathway arrange steps from 1-7:aortic valve A) 3. B) 7. C) 5. D) 4. E) 6. Show Answer Correct Answer: E) 6. 3. Bronchi A) Smaller branches of the bronchi, located in the lungs. B) Buildup of fatty material within the walls of arteries. C) Pair of breathing tubes that branch from the trachea into the lungs. D) Something that helps produce a result. Show Answer Correct Answer: C) Pair of breathing tubes that branch from the trachea into the lungs. 4. Which part of the Respiratory System plays a major role in speech? A) Nose. B) Pharynx. C) Larynx. D) Trachea. Show Answer Correct Answer: C) Larynx. 5. What system does the circulatory system work with to obtain oxygen for the body? A) Digestive system. B) Cardiovascular system. C) Nervous system. D) Respiratory system. Show Answer Correct Answer: D) Respiratory system. 6. Where does the digestive system start? A) The liver. B) The throat. C) The stomach. D) The mouth. Show Answer Correct Answer: D) The mouth. 7. Which of the following is a correct pathway of blood in the pulmonary circulation? A) Vena Cava Left Atrium Right Atrium Lungs. B) Vena Cava Left Atrium Left Ventricle Lungs. C) Vena Cava Right Atrium Left Atrium Lungs. D) Vena Cavas Right Atrium Right Ventricle Lungs. Show Answer Correct Answer: D) Vena Cavas Right Atrium Right Ventricle Lungs. 8. All of the following are factors that control blood pressure except A) Peripheral resistance. B) Cardiac output. C) Lung capacity. D) Blood volume. Show Answer Correct Answer: C) Lung capacity. 9. All are organs of the circulatory system except A) Veins. B) Arteries. C) Heart. D) Trachea. Show Answer Correct Answer: D) Trachea. 10. The Greek physician and anatomist whose ideas dominated western medicine for how many years. A) 1500. B) 10. C) 200. D) 3. Show Answer Correct Answer: A) 1500. 11. Exchanges between the blood and cells take place through the: A) Arteries. B) Capillaries. C) Celiac. D) Aorta. Show Answer Correct Answer: B) Capillaries. 12. Hemoglobin is responsible for transporting what component within the blood? A) Glucose. B) Platelets. C) Oxygen. D) Carbon dioxide. Show Answer Correct Answer: C) Oxygen. 13. What is the shape of a healthy red blood cell? A) Spherical. B) Sickle-shaped. C) Biconcave. D) Cylindrical. Show Answer Correct Answer: C) Biconcave. 14. Which of the following carries oxygen to the cells of the body and carry carbon dioxide away? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) None of above. Show Answer Correct Answer: A) Red Blood Cells. 15. What is the function of platelets in blood? A) Platelets transport oxygen in the blood. B) Platelets help in the production of red blood cells. C) Platelets help in blood clotting and prevent excessive bleeding. D) Platelets regulate blood pressure in the body. Show Answer Correct Answer: C) Platelets help in blood clotting and prevent excessive bleeding. 16. What is the main purpose of the circulatory system? A) Disposal of waste products. B) Exchange of gases. C) Transportation of nutrients. D) None of above. Show Answer Correct Answer: C) Transportation of nutrients. 17. How does your body acquire the oxygen the cells in your body need to function? A) Breathing. B) Osmosis. C) Diffusion. D) Absorption. Show Answer Correct Answer: A) Breathing. 18. Blood cells are made in bone marrow. A) True. B) False. Show Answer Correct Answer: A) True. 19. Heart attack A) Not enough blood reaches the heart due to a blocked blood vessel. B) Not enough blood reaches the brain due to a blocked or broken blood vessel. C) The hear is not strong enough to contract and relax properly. D) None of above. Show Answer Correct Answer: A) Not enough blood reaches the heart due to a blocked blood vessel. 20. Oxygen rich blood flows from the lungs into the ..... A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: B) Left atrium. ← 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