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Functions of the Heart. The heart functions include. 1  The heart generates blood pressure. 2  The heart routes blood through the systemic and pulmonary circulation. 3  The pumping action of the heart and the valves of the heart ensure a one-way flow of blood through the heart and blood vessels. 4  The heart helps regulate blood supply to tissues.
A nephron eliminates wastes from the body, regulates blood volume and blood pressure, controls levels of electrolytes and metabolites, and regulates blood pH. Its functions are vital to life and are regulated by the endocrine system by hormones such as antidiuretic hormone, aldosterone, and parathyroid hormone.