This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 546 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 546 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... begin in the form of blood capillaries then collected together to become larger till reach to the heart. A) Arteries. B) Capillaries. C) Veins. D) No correct answer. Show Answer Correct Answer: C) Veins. 2. Pulmonary Artery is the largest artery A) True. B) False. Show Answer Correct Answer: B) False. 3. Considered to be present when a person's systolic blood pressure is consistently 140mmHg or greater, and/or their diastolic blood pressure is consistently 90mmHg or greater, known as high blood pressure A) Hypertension. B) Arteriosclerosis. C) Plaque. D) Stroke. Show Answer Correct Answer: A) Hypertension. 4. What is the name given to a bulge in a blood vessel? A) Plaque. B) Aneurysm. C) Myocardial infarction. D) Thrombosis. Show Answer Correct Answer: B) Aneurysm. 5. What would be a mechanism used by the circulatory system to reduce blood loss following a significant cut or wound? A) Vasoconstriction. B) Vasodilation. C) Increase in blood pressure. D) Decrease in blood viscosity. Show Answer Correct Answer: A) Vasoconstriction. 6. These send the nerve signal to the ventricles to contract: A) Purkinje fibres. B) Hypothalamus. C) AV valve. D) Tendon chords. Show Answer Correct Answer: A) Purkinje fibres. 7. Select the 2 parts of the circulatory system A) Lymphatic and metabolic. B) Lymphatic and cardiovascular. C) Metabolic and cardiovascular. D) Heart and blood vessels. Show Answer Correct Answer: B) Lymphatic and cardiovascular. 8. What is the muscliest part of the heart where the blood is now in, according to the image? A) Right atrium. B) Left atrium. C) Right ventricle. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 9. 4 Which blood vessel has a high carbon dioxide concentration, a low oxygen concentration and a high blood pressure? A) And aorta. B) B pulmonary artery. C) C pulmonary vein. D) D vena cava. Show Answer Correct Answer: B) B pulmonary artery. 10. ..... pumps blood to the lungs A) Right ventricle. B) Left ventricle. C) Right atrium. D) Left atrium. Show Answer Correct Answer: A) Right ventricle. 11. If a person has no antibodies in their blood, what type of blood do they have? A) AB. B) A. C) B. D) O. Show Answer Correct Answer: A) AB. 12. Which blood vessel has the "most" middle and outer layer thickness and can withstand the "highest" blood pressure? A) Aorta. B) Artery. C) Vein. D) Vena cava. Show Answer Correct Answer: A) Aorta. 13. RBC breakdown is called? A) Hemolysis. B) Homeostasis. C) Homeostasis. D) None of above. Show Answer Correct Answer: A) Hemolysis. 14. What is the most important job of the valves in the heart? A) To regulate the heart rate. B) To produce red blood cells. C) To filter waste products from the blood. D) To ensure blood flows in the correct direction and prevents backflow. Show Answer Correct Answer: D) To ensure blood flows in the correct direction and prevents backflow. 15. What does the red blood cell pick up in the lungs? A) Carbon dioxide. B) Oxygen. C) Nutrients. D) Waste products. Show Answer Correct Answer: B) Oxygen. 16. Which of the following is not part of the blood? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. E) None of the above. Show Answer Correct Answer: E) None of the above. 17. Which component of blood carries oxygen? A) Red blood cells. B) White blood cells. C) Platelets. D) Plasma. Show Answer Correct Answer: A) Red blood cells. 18. Eat microorganisms and other substances A) Neutrophil. B) Erythropoiesis. C) Erythrocytes (RBCs). D) Leukocytes (WBCs). E) Leukocytes (WBCs). Show Answer Correct Answer: A) Neutrophil. 19. How would damage to the liver affect digestion? a) b) c) d) A) Foods would not be ground up. B) Fats would not be digested properly. C) Starches would be changed to sugars. D) Too much water would be absorbed by the large intestine. Show Answer Correct Answer: B) Fats would not be digested properly. 20. These apply to exhalation A) Diaphragm up. B) Ribs move out. C) Diaphragm moves down. D) None of above. Show Answer Correct Answer: A) Diaphragm up. ← 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