what is the. nephrons ? what they do
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Each of your kidneys is made up of about a million filtering units called nephrons. Each nephron includes a filter, called the glomerulus, and a tubule. The nephrons work through a two-step process: the glomerulus filters your blood, and the tubule returns needed substances to your blood and removes wastes.
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nephron are structural and functional unit of kidney
they filter the blood remove excess material and urea
and reabsorb water
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