Keep in exact proportion to the blood and maintain water balance in minerals: a slight excess of potassium for example could stop the heart, regulate the balance between acids and alkalis, dispersing the excess urea that would cause serious harm if health.
During the period of 24 hours the kidneys cleanse the dross about a ton and a half of blood, or the filtering to 300 times.
They have a capacity about two times higher than it takes to keep the body healthy. In fact, if it be necessary for the removal of a kidney patient, that was an easy task to work twice.
The kidneys are organs of the red-brown, big as a fist, they weigh about a pound each, but enclosing the most complicated system of pipes of the human body.
Each one of them on the sides of the spine contains a million functional elements: the nephrons.
To the naked eye a single nephron и not bigger than a grain of sand, but under a microscope looks like a worm from the large head and body like a tangled tail.
The head of the glomerulus и Malpighi, tail и the tubule. In the head a dense tangle of capillaries that continuously filters the blood, sweat leaving the watery part of the sheath in the same glomerulus but retaining nearly all the blood cells and almost all proteins. Over 98% of the liquid that collects in the sheath и reabsorbed by the tubules, which have a development of about a hundred miles. With a refined process of selection, the tubules return to the blood amino acids, glucose and minerals necessary for health, discarding the dross and excess water.
The ejected droplets are collected in a common tank, connected to the bladder via the ureter. A contraction of the muscles, which occurs with a frequency of 10 to 30 seconds and that spreads like a wave, pushing the liquid into the bladder.
The severity of renal disease varies with the nature and cause of evil and the second zone of the affected kidney.
The kidney infection caused by the invasion of и that certain bacteria and is manifested by fever, back pain and other symptoms. If diagnosed and treated immediately may also not interfere with renal function.
One of the more known kidney disease и acute diffuse glomerulonephritis or Bright's disease.
In reality is usually indicated by this name any inflammation of the kidney.
Various causes can cause inflammation of this sensitive organ: poisons, injury, toxins released by bacteria in other parts of the organism.
The nephrons inflamed, losing their ability selectively allow the passage of the vital blood proteins and cells and can be discovered in the urine.
Or too much water can absorb and retain minerals in excess, causing swollen arms, legs, eyelids.
Acute glomerulonephritis, not well cared for, can turn into a chronic, symptom-less obvious but more serious consequences, because, over time, may inevitably undermine the ability of the kidneys filtering system to perform their function.
It thus establishes a state of renal failure, where the dreaded и terminal uremia, i.e. a severe poisoning of the body.
Acute renal failure is a rapid loss of renal functionality resulting increase in blood urea nitrogen, other metabolites excreted by the kidneys, water retention and electrolyte abnormalities.
Chronic renal failure there is slow and progressive deterioration of renal function, regardless of the causal neuropathology.
If the kidneys no longer excrete urine accumulate in the slag.
In addition to severe renal insufficiency this can be caused by circulatory problems, which leads to kidney an insufficient quantity of blood.
Severe burns or wounds followed by shock can cause the kidneys.
No comments:
Post a Comment