It is a triangular shaped organ present mainly on the left side of the body. Anatomically the base or the top of the hear is present predominantly on the left with the apex of the organ positioned close the middle of the chest, behind the beast bone (the broad bone present at the center of the rib cage). The heart’s main function is to maintain the circulation of oxygenated blood into the body and take deoxygenated blood from the body. It helps pump deoxygenated blood onto the lungs, where it gets oxygenate, which is then circulated throughout the body. A human heart is made of four chambers — two artrium at the top and two ventricles at the base. There are valves between the each chamber that help regulate blood flow. The heart is made up of involuntary muscles, which means they work on therir own without any stimulation. The heart works by passing a small current throughout the organ. The organ is fed by cardiovascular blood vessels, which when blocked could lead to heart attacks.
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