MCQ on Cardiovascular SystemBy admin / August 1, 2025 0 votes, 0 avg 7 Get Ready Time Up Cardiovascular System Test your knowledge on Cardiovascular System of Human Body 1 / 10 What structure prevents backflow of blood in the heart? Heart valves Heart muscle Capillaries Arteries 2 / 10 What is the primary function of the cardiovascular system? To produce hormones To regulate blood sugar levels To circulate blood and transport oxygen and nutrients To filter waste products from the blood 3 / 10 Which of the following is the largest artery in the body? Aorta Femoral artery Pulmonary artery Carotid artery 4 / 10 Which of the following veins carries oxygenated blood from the lungs to the heart? Renal vein Jugular vein Femoral vein Pulmonary vein 5 / 10 Which of the following blood vessels carry oxygenated blood? Lymphatic vessels Arteries Veins Capillaries 6 / 10 The electrical impulses that regulate heartbeats are generated by which part of the heart? Bundle of His Sinoatrial (SA) node Atrioventricular (AV) node Purkinje fibers 7 / 10 What is hypertension? Low blood pressure High blood pressure Irregular heartbeats Heart failure 8 / 10 What is the function of red blood cells in the cardiovascular system? To regulate blood pressure To fight infection To carry oxygen To clot the blood 9 / 10 Which of the following is responsible for blood clotting? White blood cells Plasma Platelets Red blood cells 10 / 10 Which heart chamber receives deoxygenated blood from the body? Right atrium Left ventricle Left atrium Right ventricle Your score isThe average score is 80% 0% Restart quiz