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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.
The heart's primary function is to pump blood to all parts of the body, bringing nutrients and oxygen to the tissues and removing waste products. When the body is at rest, it needs a certain amount of blood to achieve this function.he heart's primary function is to pump blood to all parts of the body, bringing nutrients and oxygen to the tissues and removing waste products. When the body is at rest, it needs a certain amount of blood to achieve this function.