How should the nefron works
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Answer:
The nefron work through a two step process the glomerulus filters your blood, and the tubule returns needed substance to your blood and Removes wastes
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Nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1,000,000 nephrons in each human kidney. The most primitive nephrons are found in the kidneys (pronephros) of primitive fish, amphibian larvae, and embryos of more advanced vertebrates. The nephrons found in the kidneys (mesonephros) of amphibians and most fish, and in the late embryonic development of more advanced vertebrates, are only slightly more advanced in structure. The most advanced nephrons occur in the adult kidneys, or metanephros, of land vertebrates, such as reptiles, birds, and mammals.
Urine formation by nephron takes place in three ways:
- Nephron filters urea from blood stream. The process is called ultrafiltration, but along with urea many useful components of blood appear in the filtrate.
- Such useful materials like glucose, amino acids, ions, water, etc are selectively reabsorbed from filtrate by specific parts of nephron. Reabsorption of water is partly controlled by posterior pituitary hormone vasopressin.
- Free hydrogen ions are also added to filtrate by tubular secretion of nephron (which helps in maintaining blood pH). This results in making urine acidic.
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