left atrium the heart with human body |
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| navigate by keyword : aorta arteries arterioles artery atria atrioventricular atrium blood capillaries chambers cycle deoxygenated electrical endocardium epicardium heart impulse lungs myocardium node organ oxygenated oxygenrich pulmonary pump signal signals tissue tricuspid upper veins ventricle ventricles venules |
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| The left atrium is one of the four chambers of the heart, located on the left posterior side. Its primary roles are to act as a holding chamber for blood returning from the lungs and to act as a pump to transport blood to other areas of the heart. |
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