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The circulatory system is one of the most important systems in the human body.
Member rating: No Rating | Words: | Submitted: Mon Jan 16 2006
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The Circulation The circulatory system is one of the most important systems in the human body. It consists of the heart and blood vessels. It is what makes the blood in our body go round. The blood carries oxygen, nutrients and hormones and takes them to where they are needed and removes the waste products like carbon dioxide. The circulatory system nourishes every cell, tissue, organ and organ system in the body. There are approximately ten pints of blood constantly circulating through seventy- five- thousand miles of blood vessels. These blood vessels reach every cell in the human body. Once they reach the cells they deliver much needed oxygen and remove carbon dioxide and other poisonous waste products. The circulation to and from the lungs is called the pulmonary circulation; the circulation round the rest of the body is called the systemic circulation. On average, a red...
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