acid alkaline balance in the human body

acid alkaline balance in the human body
acid alkaline balance in the human body

Acidity is an important chemical properties of blood and other body fluids.
Unit acidity is pH:
# PH of 7.0 is neutral
# PH above 7.0 is alkaline (alkali)
# PH below 7.0 is acidic.
A strong acid has a very low pH (near 1.0), while a strong base has a very high pH (above 14.0).

Blood has a pH of between 7.35 to 7.45.
Acid-base balance of the blood is carefully controlled, because the pH changes very kecilpun can give serious effects on several organs.

3 mechanisms the body uses to control blood acid-base balance:

   1. Excess acid will be removed by the kidneys, mostly in the form of ammonia
      The kidneys have the ability to change the amount of acid or base is removed, which usually lasts for several days.

   2. Body using pH buffer (buffer) in the blood as a protection against the changes which occur suddenly in blood pH.
      A pH buffer work chemically to minimize changes in the pH of a solution.
      Paliing important buffer pH using bicarbonate in the blood.
      Bicarbonate (a base component) is in equilibrium with the carbon dioxide (an acid component).
      If more acid enters the bloodstream, it will produce more bicarbonate and less carbon dioxide. If more alkaline into the bloodstream, it will produce more carbon dioxide and less bicarbonate.

   3. Disposal of carbon dioxide.
      Carbon dioxide is an important by-product of oxygen metabolism and continuously generated by the cell.
      The blood carries carbon dioxide to the lungs and in the lungs of carbon dioxide is released (exhaled).
      Respiratory center in the brain that regulate the amount of carbon dioxide exhaled by controlling the speed and depth of breathing.
      If breathing increases, dioksidadarah carbon content decreases and the blood becomes more alkaline. If respiration decreases, blood carbon dioxide levels increase and the blood becomes more acidic.
      By adjusting the speed and depth of breathing, the respiratory center and is able to organize pulmonary blood pH minute by minute.


Abnormalities in one or more of the mechanisms controlling the pH, can cause one of the two major abnormalities in acid-base balance, ie acidosis or alkalosis.

Acidosis is a condition where the blood has too much acid (or too little base) and often causes decreased blood pH.
Alkalosis is a condition where the blood has too much base (or too little acid) and sometimes cause increased blood pH.

Acidosis and alkalosis is not a disease but rather a result of a number of diseases.
Acidosis and alkalosis is important evidence of the existence of serious metabolic problems.

Acidosis and alkalosis are grouped into metabolic or respiratory, depending on the underlying cause.
Metabolic acidosis and metabolic alkalosis is caused by an imbalance in the formation and disposal of acid or base by the kidneys.
Respiratory acidosis or respiratory alkalosis mainly due to lung disease or respiratory disorders.

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