Function Of The Kidneys
The kidneys – an endocrine organ extremely important for our bodies.
Function Of The kidneys : urine formation and excretion of waste
This is the most important function, why say that?
When we eat or drink, these substances are digested in the intestines, which are then absorbed into the bloodstream.
Through the blood circulation system, they will have to go through the kidneys to filter waste, toxins, excreted into urine and excreted from the body.
The kidneys make urine mainly through 3 processes :
1 – Glomerular filtration effects :
When blood flows through the glomeruli, the glomeruli filter water and other materials to form the first urine.
2 – The reabsorption effect of renal ureter :
After the first urine passes through the kidney’s ureter, 99% reabsorbs water.
At the same time, reabsorbed back into the bloodstream : all glucose, protein and other nutrients.
In addition, reabsorption in small curved tubes : sodium ions, chloride, H20 and urea.
3 – Excretion effect of renal ureter.
In summary, the close relationship between 3 processes of filtration,
reabsorption and excretion, kidneys maintain the normal state of the body and the amount of excreted urine.
Therefore, when there is any small change, the amount of urine and the color of urine change will be the basis for the diagnosis and clinical treatment of kidney problems.
Function Of The Kidneys : is an important endocrine organ
The kidneys produce and secrete renin, the enzyme that releases kininogenase, promotes the production of red blood cells, prostate hormone.
At the same time, substances 1,25-dihydroxy-cholecalciferol, sodiumuretic-peptides (NP), renin inhibitors, and various types of triglycerides against hypertension.
The following are physiological effects of important hormones secreted by the kidneys :
Renin : Causes blood vessels to shrink, increase blood volume and increase blood pressure.
Bradykinin : amplifying small arteries, increasing blood flow through the kidneys.
In addition, increased excretion of water and sodium out of the body, anti-vascular contraction, reducing blood pressure.
Prostate hormone : Has diuretic effect, reduces blood volume, dilates blood vessels and lowers blood pressure.
Promote the production of red blood cells (EPO) :
Accelerate the consolidation of red blood cells and proteins, further increasing the formation of red blood cells.
Substances 1,25-dihydroxy-cholecalciferol :
Reabsorption of calcium and phosphorus, metabolism of vitamin D,creating new calcium, bone formation.
Other Functions
Remove drugs from the body.
Balance the body’s fluids.
In summary, kidney function includes :
Remove waste products from the body
Remove drugs from the body
Balance the body’s fluids
Release hormones that regulate blood pressure, ensure blood vessel elasticity, maintain blood volume and ability to make blood for the body.
Produce an active form of vitamin D that promotes strong, healthy bones
Control the production of red blood cells
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