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The Importance of Nephrons in Kidneys

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The Importance of the Nephron in Kidneys

All living organisms require a source of energy, usually in the form of food, to satisfy the cellular demands of the body and ultimately to sustain life. Thus, the nutrients that are consumed by organisms are broken down by various processes within organs, tissues, and cells, in order for important molecules, like minerals, vitamins, proteins, and carbohydrates, to be taken up and distributed around the body. The molecules not needed by the body or ends up as excess in the blood, is discarded as waste products; the system that is responsible for filtering our body, or rather our blood from these waste products, is known as the urinary system. The urinary system consists of organs in the body specific to filtering out excessive fluid and other substances from the bloodstream. This system works together with other organs like the lungs, skin, and intestines, all of which help with the process of eliminating wastes, and regulate the amount of chemicals and water floating in a person’s body (Campbell, “Excretory System”). In addition, these accessory systems to the urinary system ultimately help the body maintain pressure, volume, and composition of the blood (Campbell, “Excretory”). Along with electrolytes, uric acid, and glucose, the urinary system also removes a protein essential for breaking down proteins in the body which is called urea. Urea, together with water and other waste products, forms the liquid that is excreted from organisms commonly known as urine. Excretion is one of the major functions of the urinary system, and it is the process of eliminating the waste products and other materials that are of no use to an organism’s metabolism (“Your Urinary System and How it Works”). Without this process, the urinary

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system would not be able to appropriate fluid volume in the blood, regulate the

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