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Is lymph and filtrate formed by kidney after ultra filtration are same in their concentration |
| Answer» The Three Steps of\xa0Urine\xa0Formation. The kidneys filter unwanted substances from the blood and produce\xa0urine\xa0to excrete them. There are three main steps of\xa0urine\xa0formation: glomerular\xa0filtration, reabsorption, and secretion.\xa0Filtrate\xa0is produced by the glomerulus when the hydrostatic pressure produced by the heart pushes water and solutes through the\xa0filtration\xa0membrane. Glomerular\xa0filtration\xa0is a passive process as cellular energy is not used at the\xa0filtration\xa0membrane to produce\xa0filtrate.\xa0Filtration takes place in the glomerulus , which is the vascular beginning of the\xa0nephron\xa0. Approximately one-fourth of the blood flow from cardiac output circulates through the kidney, the greatest rate of blood flow for any organ . | |