explain properties of heart
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1. It helps in pumping blood to all body parts.
2.It carries deoxygenated blood towards the lungs.
3.It helps in separating deoxygenated blood and oxygenated blood.
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The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, lines the inside. The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers.
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