This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 666 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 666 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Tiny, thin-walled blood vessels that allow the exchange between systems- A) Aorta. B) Pulmonary artery. C) Veins. D) Capillaries. Show Answer Correct Answer: D) Capillaries. 2. The right atrium takes in blood from ..... A) All parts of the body. B) The lungs. Show Answer Correct Answer: A) All parts of the body. 3. Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun's energy? A) Chemical $\rightarrow$ thermal. B) Light $\rightarrow$ chemical. C) Thermal $\rightarrow$ light. D) Chemical $\rightarrow$ electrical. Show Answer Correct Answer: B) Light $\rightarrow$ chemical. 4. Which of the following vessels has thin muscle wall and a large lumen? A) Vein. B) Artery. C) Capillary. D) Aorta. Show Answer Correct Answer: A) Vein. 5. Circulatory system in human A) Complete, closed, double. B) Complete, closed, single. C) Closed, complete, double. D) Double, closed, complete. Show Answer Correct Answer: C) Closed, complete, double. 6. Cardiac veins:from A) Heart. B) Lungs. C) Aorta. D) Heart muscles. Show Answer Correct Answer: D) Heart muscles. 7. The largest ARTERY in our body: A) Pulmonary Artery. B) Inferior Vena Cava. C) Aorta. D) Septum. Show Answer Correct Answer: C) Aorta. 8. Which blood cells in blood are responsible for blood coagulation? Blood cells responsible for high blood pressure A) RBC are red blood cells. B) WBC are white blood cells. C) Platelets Platelets. D) All the above cells are all the above cells. Show Answer Correct Answer: C) Platelets Platelets. 9. The 2 valves between the arteries are known as? A) Aorta, Pulmonary artery. B) Vena cava, Pulmonary veins. C) Aorta, Pulmonary veins. D) Vena cava, Pulmonary artery. Show Answer Correct Answer: A) Aorta, Pulmonary artery. 10. This is a condition where the flow of blood is blocked to the brain, and brain cells are damaged. A) Coronary heart disease. B) Heart failure. C) Stroke. D) Atherosclerosis. Show Answer Correct Answer: C) Stroke. 11. In which chamber of heart do the superior vena ceva and inferior vena ceva empty deoxygenated blood A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: B) Right atrium. 12. What is the function (job) of the red blood cells? A) To transport oxygen around the body and to the muscles. B) To release antibodies to fight infections. C) To carry dissolved nutrients and sugars. D) To clot and form scabs if there is a wound on the body. Show Answer Correct Answer: A) To transport oxygen around the body and to the muscles. 13. These are small and irregularly shaped cells that help the blood to clot when the body is wounded, preventing too much loss of blood. A) Lymph. B) Platelet. C) Blood vessel. D) None of above. Show Answer Correct Answer: B) Platelet. 14. In the pulmonary circuit, veins carry oxygen ..... blood A) Rich. B) Poor. C) Neutral. D) Cannot tell. Show Answer Correct Answer: A) Rich. 15. Air travels from the pharynx into the ....., also called the windpipe. A) Bronchi. B) Alveoli. C) Treacherous. D) Trachea. Show Answer Correct Answer: D) Trachea. 16. The two primary circulatory loops in the human body are: A) Pulmonary circulation, systemic circulation. B) Aorta, vena cava. C) Heart, blood vessels. D) Circulatory veins, circulatory arteries. Show Answer Correct Answer: A) Pulmonary circulation, systemic circulation. 17. The circulatory system is also called the ..... A) The information center of the body. B) The waste system of the body. C) The transportation system of the body. D) The messenger system of the body. Show Answer Correct Answer: C) The transportation system of the body. 18. These are the smaller top chambers of the heart: A) Atria. B) Ventricles. C) Valves. D) Arterioles. Show Answer Correct Answer: A) Atria. 19. Two Lower chambers of the heart are called A) The atrium. B) The auricles. C) The ventricles. D) The valves. Show Answer Correct Answer: C) The ventricles. 20. Bacteria infect the lungs, causing capillaries to swell which allows blood to enter air spaces ("fluid on the lungs") A) Pneumonia. B) Hyperventilating. C) Fainting. D) Emphysema. Show Answer Correct Answer: A) Pneumonia. ← 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