This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 547 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 547 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Location of the atrioventricular valves A) Left ventricle and aorta. B) Towards the left of sternum (breast bone). C) Between ventricle and atria. D) None of above. Show Answer Correct Answer: B) Towards the left of sternum (breast bone). 2. The ..... pumps oxygen-rich blood out of the heart to the rest of the body. A) Right ventricle. B) Left ventricle. C) Right atrium. D) Left atrium. Show Answer Correct Answer: B) Left ventricle. 3. Blood group O consists of antigens O A) True. B) False. Show Answer Correct Answer: B) False. 4. Valves are..... A) Chambers of the heart. B) Structures that open and close to control blood flow through the heart. C) Fight infection. D) Pump blood through the arteries. Show Answer Correct Answer: B) Structures that open and close to control blood flow through the heart. 5. What is the double layered membrane that covers the outside of the heart? A) Pericardium. B) Myocardium. C) Endocardium. D) None of above. Show Answer Correct Answer: A) Pericardium. 6. ..... is when your heart stops pumping blood around your body A) Cardiac arrest. B) Heart failure. C) Ischemia. D) Syncope. Show Answer Correct Answer: A) Cardiac arrest. 7. Platelets are small fragments of cells that ..... A) Allow for gases to exchange. B) Give blood its color. C) Fight infection and disease. D) Help clot blood. Show Answer Correct Answer: D) Help clot blood. 8. Who carries away the blood? A) Veins. B) Arteries. Show Answer Correct Answer: A) Veins. 9. Which component of the circulatory system transport nutrients, gases, hormones, and other metabolic wastes to the cells of the body? A) Heart. B) Blood Vessels. C) Blood. D) None of above. Show Answer Correct Answer: C) Blood. 10. Oxygen enters the body through the ..... or ..... A) Ears or mouth. B) Nose or ears. C) Mouth or nose. D) Eyes or ears. Show Answer Correct Answer: C) Mouth or nose. 11. What is a bruise? A) A change in melanin. B) Muscle tearing. C) Tiny blood vessels breaking underneath the skin. D) Burning of the skin. Show Answer Correct Answer: C) Tiny blood vessels breaking underneath the skin. 12. The nervous system is divided into how many parts? A) One. B) Two. C) Five. D) Magic. Show Answer Correct Answer: B) Two. 13. Match each section of the respiratory system to its characteristics or definition Mouth and Nose A) Flap of skin to cover when you swallow. B) Pushes air through the voice box. C) Moves air down ( Tube in back of the mouth). D) Air enters and tissues moisten the air. Show Answer Correct Answer: D) Air enters and tissues moisten the air. 14. Correct path of oxygenated blood in body A) Lungs$\rightarrow$right atrium$\rightarrow$pulmonary artery$\rightarrow$body. B) Lungs$\rightarrow$left atrium$\rightarrow$right atrium$\rightarrow$body. C) Body$\rightarrow$ venacava$\rightarrow$right atrium$\rightarrow$ lungs. D) Lungs$\rightarrow$left atrium$\rightarrow$left ventricle$\rightarrow$body. Show Answer Correct Answer: D) Lungs$\rightarrow$left atrium$\rightarrow$left ventricle$\rightarrow$body. 15. What important process takes place in the lungs? A) Food is digested here. B) Liquid waste is filtered from the blood. C) Oxygen is exchanged for carbon dioxide. D) The trachea is exchanged for the larynx. Show Answer Correct Answer: C) Oxygen is exchanged for carbon dioxide. 16. If my blood pressure is 120/80, the 80 is my ..... pressure. A) Systolic. B) Diastolic. Show Answer Correct Answer: B) Diastolic. 17. What are the names of the blood vessels which connect the heart to the lungs? A) Blood vessels. B) Vena cava and aorta. C) Arteries and veins. D) Pulmonary artery and pulmonary vein. Show Answer Correct Answer: D) Pulmonary artery and pulmonary vein. 18. What is the function of the villi? A) To increase the absorption surface. B) To digest the last nutrients. C) To form feces. D) To comb the small intestine. Show Answer Correct Answer: A) To increase the absorption surface. 19. It directs blood from the upper extremities into the right artery. A) Inferior vena cava. B) Superior vena cava. C) Pulmonary artery. D) Pulmonary vein. Show Answer Correct Answer: B) Superior vena cava. 20. A device used to measure blood pressure A) Microscope. B) Telescope. C) Sphygmomanometer. D) Mouth. Show Answer Correct Answer: C) Sphygmomanometer. ← 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