1) Which of these blood vessels carries blood towards the heart a) Vein b) Artery c) Capillary 2) How many chambers does the heart have? a) 1 b) 2 c) 4 3) Which of these is for transporting oxygen a) White blood cells b) Red Blood cells c) Platelets 4) Which of these is for healing wounds a) Platelets b) White blood cells c) Red blood cells 5) Which of these has the thinnest wall? a) Veins b) Capillaries c) Arteries 6) Which blood vessel carries blood towards the lungs a) Pulmonary artery b) Vena Cava c) Aorta 7) Which blood vessel carries blood away from the heart a) Vein b) Artery c) Capillary 8) Where are blood cells made? a) Bone Marrow b) Brain c) Muscles 9) What do we use oxygen for? a) Respiration b) Perspiration c) Oxidation

Circulatory system

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