This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 641 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 641 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are the tubes called that carry blood away from the heart under high pressure? A) Veins. B) Capillaries. C) Arteries. D) Bronchi. Show Answer Correct Answer: C) Arteries. 2. Cholesterol is harmful for your body because it clogs your ..... A) Ventricles. B) Arteries. C) Platelets. D) None of above. Show Answer Correct Answer: B) Arteries. 3. When food is broken down by enzymes or acid, ..... digestion is taking place. A) Chemical. B) Mental. C) Emotional. D) Mechanical. Show Answer Correct Answer: A) Chemical. 4. What are the upstair chambers of the heart called? A) Nerves. B) Septum. C) Ventricles. D) Atriums. Show Answer Correct Answer: D) Atriums. 5. 90% water A) Red blood cells. B) White blood cells. C) Plasma. D) Platelets. Show Answer Correct Answer: C) Plasma. 6. Passageway into the respiratory system that helps to warm and filter air A) Lungs. B) Skin. C) Nose and mouth. D) None of above. Show Answer Correct Answer: C) Nose and mouth. 7. What is found around alveoli? A) Capillaries. B) Pleura. C) Lymphatic nodes. D) Saliva. Show Answer Correct Answer: A) Capillaries. 8. Which valve separates the right atrium from the pulmonary artery? A) Mitral Valve. B) Tricuspid Valve. C) Pulmonary Valve. D) Aortic Valve. Show Answer Correct Answer: C) Pulmonary Valve. 9. After the exchange of materials in the lungs, the blood containing fresh ..... flows into the left atrium. A) Oxygen. B) Ill. C) Nutrients. D) Iron. Show Answer Correct Answer: A) Oxygen. 10. Which system carries needed materials to the body cells and carries wastes away from the body cells? A) Circulatory. B) Digestive. C) Nervous. D) Excretory. Show Answer Correct Answer: A) Circulatory. 11. Which is not a component of the cardiovascular system A) Heart. B) Brain. C) Blood vessels. D) Blood. Show Answer Correct Answer: B) Brain. 12. What carries needed substances to the body cells? A) Blood. B) Small intestines. C) Liver. D) Platelets. Show Answer Correct Answer: A) Blood. 13. The average amount of haemoglobin in females is 12mg/dl of blood. A) True. B) False. Show Answer Correct Answer: A) True. 14. This is the major vein that returns blood form the arms and head to the heart A) Superior Vena Cava. B) Aorta. C) Inferior Vena Cava. D) Pulmonary Vein. Show Answer Correct Answer: A) Superior Vena Cava. 15. What is the cause of atherosclerosis? A) Heart Failing to pump blood. B) Lack of oxygen and blood circulation around the body. C) Build up of fat in blood cells. D) Wait What. Show Answer Correct Answer: C) Build up of fat in blood cells. 16. The types of blood group are A) A, B, AB, O. B) A, o, D. C) AB, H, B, O. D) None of above. Show Answer Correct Answer: A) A, B, AB, O. 17. The SA node initiates the first electrical impulse in the heart, which will eventually cause the heart to contract, what is the unofficial "nickname" of the SA node? A) The heart starter. B) The pace maker. C) The electric starter. D) The beat keeper. Show Answer Correct Answer: B) The pace maker. 18. Whose job is it to give oxygen and nutrients to cells, while taking away carbon dioxide and waste? A) White blood cells platelets white blood cells. B) Platelets. C) Plasma. D) Red blood cells. Show Answer Correct Answer: D) Red blood cells. 19. Name of the valve that separates right atrium from right ventricle. A) Tricuspid. B) Aortic. C) Mitral. D) None of above. Show Answer Correct Answer: A) Tricuspid. 20. Define the term cardiac output A) The volume of blood ejected from the heart in one/single pump. B) The volume of blood expelled from the heart per minute. Show Answer Correct Answer: B) The volume of blood expelled from the heart per minute. ← 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