1) The heart is also called a. muscular pump b. pumping device c. pumping machine d. pumping muscle
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2) The walls of left ventricle are thicker than the walls of right ventricle because a. it has to pump blood to the whole body b. it has to pump the blood to lungs c. blood reaches this ventricle in huge amount d. blood reaches this ventricle with extra pressure
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3) The vessel which takes the blood from heart to lungs, is known as a. renal artery b. pulmonary artery c. renal vein d. pulmonary vein
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4) Tiny vessels link up and form a a. artery b. vein c. capillary d. nerve
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5) The clot of blood formed in the blood vessel is known as a. hemophilia b. anemia c. thrombosis d. varicose vein
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6) 'Oxygen' is taken from a. cells to lungs b. heart to lungs c. lungs to cells d. cells to heart
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7) The cells generally known "the army of human body" are a. white blood cells b. platelets c. red blood cells d. antigens
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8) The artery that carries deoxygenated blood is a. renal artery b. hepatic artery c. mesenteric artery d. pulmonary artery
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9) The elasticity of red blood cells helps them to a. pass through capillaries easily b. absorb oxygen easily c. release carbon dioxide easily d. move in the veins easily
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10) The beating of pulse is due to a. energy b. flow of blood c. flow of water d. oxygen
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