the Heart - Pumps blood all around the body, right and left atrium - Top chambers of the Heart, right and left ventricle - Bottom chambers of the Heart, The right ventricle wall is - thin, the left ventricle wall is - thick, septum - divides the right and left sides of the heart, Valve - stops the backflow of blood, aorta - brings oxygenated blood to the rest of the body, pulmonary artery - carries deoxygenated blood to the lungs, pulmonary vein - carries oxygenated blood from the lungs to the heart, vena cava - carries deoxygenated blood from the body to the heart., pulse - bulge in the artery, average heartbeat - 70 beats per minute (BPM), exercise and stress - cause an increase in heartbeat, wrist or the neck - where you can locate your heartbeat.,

The Circulatory System

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