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Aorta

Biology Double Circulation

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DOUBLE CIRCULATION IN MAMMALS OBJECTIVE ? Describe how the structure of the heart supports its function (blood pressure, force of contraction) ? Describe the flow of blood to and from the heart via the associated blood vessels CARDIOVASCULAR SYSTEM heart?arteries?arterioles ? ? veins?venules?capillaries HUMAN HEART ? 4 chambers(2 upper chamber, 2 lower chamber) ? Upper chambers are called atria ? Lower chambers are called ventricle ? Right side of the heart is separated from the left by a septum. ? This prevents the mixing of deoxygenated blood and oxygenated blood. HUMAN HEART RIGHT SIDE OF THE HEART 1. Right atrium ? BLOOD LOW IN OXYGEN(HIGH IN CARBON DIOXIDE) FROM ALL PARTS OF THE BODY RETURNS TO THE ATRIUM

ANATOMY OF HUMAN HEART

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HEART DIAGRAMS
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Left Side The pulmonary vein empties oxygen-rich blood, from the lungs into the left atrium. Right Side Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium.
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