Posted by / 27-Feb-2020 02:58


This is very important in maintaining the body's fluid balance. It plays a significant role in the entire process of waste elimination.

Tubular secretion is the process in which renal tubule extracts chemicals from the capillary's blood and secretes them into the tubular fluid.Some substances are retained in the bloodstream because they are bound to plasma proteins that cannot get through the membrane.For example, most calcium, iron, and thyroid hormone in the blood are bound to plasma proteins that retard their filtration by the kidneys.This process serves two main purposes: The third and final stage of urine formation is water conservation.The kidneys are not only responsible for eliminating metabolic wastes from the body but they also prevent excessive water loss, in doing so.


Fluids comprising excess water, salt and metabolic waste products are extracted from the blood as it enters the Glomerular filtration is a process in which water and some other substances in the blood plasma pass from the capillaries of the glomerulus into the Bowman's capsule.

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