amount of food that we eat for life, tens of tons, the amount of consumption of beverages - the value of the same order.Until now, no one burst, although the jokes on this subject will always be.The fact that all ingested passes polycycle associated with grinding, and chemical conversion.And it takes the waste of human excretory system.Presentation on the topic will be small.You will need 4 pages: about the kidneys, lungs, colon liver, skin.
Kidneys - the largest organism in workers allocation: 70% of all waste derived by them.They work with the most toxic substances in the body that are OK - products of protein metabolism: creatinine, urea and uric acid.They are also involved in the regulation of fluids, salts, and help get rid of foreign substances.Kidney safe shelter from all sides: nature protects these organs of the excretory system of man.If one kidney is sick, the other takes over all the work.
Product kidney - urine - is made from the blood, but not a noble reputation of the latter.While in India, even in the liquid treated with respect.In urine, nothing of what would not be in the blood.Kidneys taken from the blood of all unnecessary, and leave the body nutrients.The blood in the kidney takes 2 conversion step.First, it is taken from a lot, even useful, then sucked right back.For the first process should be low power, while the second is very cost so little bud consumes about 10% of the oxygen that went to the body.So much human excretory system needs oxygen.
The more urine output, the thicker it becomes blood vessels, and vice versa.And the amount of liquid in vessels depends blood pressure.If the pressure falls - even filtering will not occur, and if the pressure is too great, nephrons (fukntsionalnye units) will massively fail.To protect themselves, the kidneys produce renin.This hormone allows you to adjust the pressure.Since the kidneys critical need oxygen, they produce erythropoietin, which causes the bone marrow to create erythrocytes - oxygen carriers.So every time you do not have enough air during the run, you know that the kidneys produce at this time of the signal on the production of red blood cells.
urine down to the bladder, where it's stored until the moment when an adult decides to empty.A young child process that manages the spinal cord, but in two years mature respective centers of the brain and the child learns to potty.However, even an adult can lose control over urinating when urine in the bladder will be more than 500 ml.We can not tolerate a long time constant: possible stagnation of urine and the formation of stones.
If the kidneys fail, can solve many problems of the skin.It evaporates up to a liter per day.If the kidneys are sick, sweat can smell like urine.Also secrete substances to the outside light - including 400 ml of water.
human excretory system includes the rectum.It is associated with liver, because most of the toxic substances obtained from fecal bile, and bile from the liver produces "caught" from the blood substances.However, to bring out the feces hard - working the abdominal muscles and intestines simultaneously.The rectum is emptied in normal times a day, on average, one of us comes out to about 150g.Kidneys for the month output of about 45 liters of urine.So that the load on these organs considerable.
human excretory system to work well, if there are problems in one body, others take over someone else's work.If a sick liver or kidney function, the products of protein metabolism output lungs and skin, and if the liver can not cope with waste metabolism of hemoglobin, then it will be engaged in the kidneys.
