THE HUMAN HEART:The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes.The four main functions of the heart are:Pumping oxygenated blood to the other body parts.Pumping hormones and other vital substances to different parts of the body.Receiving deoxygenated blood and carrying metabolic waste products from the body and pumping it to the lungs for oxygenation.Maintaining blood pressure.
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