This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 377 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 377 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When the ventricles contract, the AV valves are A) Open. B) Closed. Show Answer Correct Answer: B) Closed. 2. The LACK of which blood component interferes most with the transport of oxygen in humans? A) White blood cells. B) Red blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: B) Red blood cells. 3. Caused by a blockage in one of the coronary arteries. A) Heart Murmur. B) Regurgitation. C) Mitral valve prolapse. D) Myocardial infarction. Show Answer Correct Answer: D) Myocardial infarction. 4. Blood group AB + can recieve blood from which of the following blood group A) A+. B) Ab-. C) O. D) All of the above. Show Answer Correct Answer: D) All of the above. 5. A person's blood type is determined by the presence or absence of specific molecules ( ..... ) on the cell membrane. A) Agglutinogens or antigens. B) Agglutinins or antibodies. C) Hemoglobin. D) Thrombocytes. Show Answer Correct Answer: A) Agglutinogens or antigens. 6. What blood vessel transports deoxygenated blood from the body to the heart? A) Vena Cava. B) Aorta. C) Pulmonary Vein. D) Pulmonary Artery. Show Answer Correct Answer: A) Vena Cava. 7. These carry deoxygenated blood to the heart A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 8. State how big (approximately) the heart is. A) The size of two closed fists. B) The same size as you brain. C) The same size of your liver. D) The size of a closed fist. Show Answer Correct Answer: D) The size of a closed fist. 9. The circulatory system consists of heart, blood vessels and A) Bones. B) Muscles. C) Blood. D) Oxygen. Show Answer Correct Answer: C) Blood. 10. What is the small flap of tissue called that covers the air-only passage when we swallow? A) Bronchioles. B) Larynx. C) Alveoli. D) Epiglottis. Show Answer Correct Answer: D) Epiglottis. 11. The blood, the heart and the blood vessels make up what A) The Circulatory system. B) The Respiratory system. C) The Endocrine system. D) None of above. Show Answer Correct Answer: A) The Circulatory system. 12. Where is "red" blood going? A) Body. B) Lungs. Show Answer Correct Answer: A) Body. 13. The name of the uper chambers of the heart A) Atrium. B) Ventricle. C) Other . D) None of above. Show Answer Correct Answer: A) Atrium. 14. They take blood from the heart to capillaries in your muscles, bones, and organs. A) Arteries. B) Capillaries. C) Vessels. D) Veins. Show Answer Correct Answer: A) Arteries. 15. If fatty deposits form inside the coronary artery, the blood flow to the cardiac muscle A) Increases. B) Decreases. Show Answer Correct Answer: B) Decreases. 16. The mistletoe A) Blood vessel. B) Blood clot. C) Vein. D) Ventricle. Show Answer Correct Answer: A) Blood vessel. 17. Upper chambers of the heart are called ..... A) Ventricles. B) Lobes. C) Atria. D) Aorta. Show Answer Correct Answer: C) Atria. 18. What is circulation to all body organs called? A) Coronary. B) Pulmonary. C) Systemic. D) Organic. Show Answer Correct Answer: C) Systemic. 19. Another name for the mitral valve is: A) Bicuspid valve. B) Tricuspid valve. C) Atrioventricular valve. D) Semilunar valve. Show Answer Correct Answer: A) Bicuspid valve. 20. Which needed gas is picked up by the red blood cells in the lungs? A) Carbon Dioxide. B) Hydrogen. C) Nitrogen. D) Oxygen. Show Answer Correct Answer: D) 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