This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 160 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 160 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is systolic pressure? A) The pressure in your arteries during the contraction of your heart muscle. B) The pressure in the arteries when the heart rests between beats. Show Answer Correct Answer: A) The pressure in your arteries during the contraction of your heart muscle. 2. Which vessel contains valves to prevent backflow? A) Vein. B) Artery. C) Capillary. D) None of above. Show Answer Correct Answer: A) Vein. 3. The cells in the blood that help fight germs like bacteria and viruses. A) RBC's. B) WBC's. C) Platelets. D) Plasma. Show Answer Correct Answer: B) WBC's. 4. Which chamber of the heart has the thickest myocardial wall? A) Left ventricle. B) Right ventricle. C) Left atrium. D) Right atrium. Show Answer Correct Answer: A) Left ventricle. 5. What is the medical term for a heart attack? A) Myocarditis. B) Arteriosclerosis. C) Heart murmur. D) Myocardial infarction. Show Answer Correct Answer: D) Myocardial infarction. 6. This particular blood vessel carries deoxygenated blood from the upper half of the body to the right atrium A) Super vena cava. B) Inferior vena cava. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: A) Super vena cava. 7. In order for the body to maintain homeostasis the intake of oxygen into the lungs must be followed by which process? A) A decrease in blood flow. B) An increase in blood pressure. C) A decrease in gas exchange. D) An exhalation of carbon dioxide. Show Answer Correct Answer: D) An exhalation of carbon dioxide. 8. Coronary circulation is between the heart and the ..... A) Heart tissue. B) Lungs. C) Villi. D) Liver. Show Answer Correct Answer: A) Heart tissue. 9. When we have exercise, our heart rate ..... A) Decreases. B) Increases. C) Stays same. D) Increases then decreases. Show Answer Correct Answer: B) Increases. 10. ..... are the odd-shaped cell fragments that help clot blood. A) Platelets. B) Plasma. C) Atria. D) Ventricles. Show Answer Correct Answer: A) Platelets. 11. Thin-walled vessels that allow for exchange of 02 and CO2, nutrients and wastes between blood cells or alveoli in the lungs A) Veins. B) Arteries. C) Capillaries. D) Aorta. Show Answer Correct Answer: C) Capillaries. 12. Which best explains how the muscular system relies on the respiratory system? A) The respiratory system cools the muscular system. B) The respiratory system acts as the support system for the muscular system. C) The respiratory system brings oxygen into the body for the muscular system to use. D) None of above. Show Answer Correct Answer: C) The respiratory system brings oxygen into the body for the muscular system to use. 13. True or False. The circulatory system responsible for the flow of blood, nutrients, hormones, oxygen and other gases to and from cells. A) False. B) True. C) Wait What?!. D) I wasn't paying attention:(. Show Answer Correct Answer: B) True. 14. These two blood vessels deliver deoxygenated blood to the right atrium A) Pulmonary veins. B) Pulmonary arteries. C) Superior and inferior vena cava. D) Tricuspid and bicuspid. Show Answer Correct Answer: C) Superior and inferior vena cava. 15. Which are the three main types of blood vessels? A) Aorta, veins and capillaries. B) Cells, veins and capillaries. C) Arteries, capillaries and veins. D) None of above. Show Answer Correct Answer: C) Arteries, capillaries and veins. 16. The waste product from your metabolism is ..... A) Oxygen. B) Carbon monoxide. C) Carbon dioxide. D) None of above. Show Answer Correct Answer: C) Carbon dioxide. 17. Produce antibodies A) Neutrophils. B) Eosinophils. C) Basophils. D) Lymphocytes. Show Answer Correct Answer: D) Lymphocytes. 18. Which ventricle receives blood from the left atrium & pumps it out to the tissues of the whole body? A) Left ventricle. B) Right ventricle. C) Thoracic cavity. D) Inferior vena cava. Show Answer Correct Answer: A) Left ventricle. 19. Protect the body against invading organisms and remove dead cells and other waste from the body A) Leukocytes (WBCs). B) Basophil. C) Lymphocyte. D) Eosinophil. E) Eosinophil. Show Answer Correct Answer: A) Leukocytes (WBCs). 20. To leave a chamber of the heart the blood has to pass through which? A) Atrium. B) Valve. C) Ventricle. D) Veins. Show Answer Correct Answer: B) Valve. ← 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