Physiology

• Regulation of Blood pH

  
• Carbon dioxide has the capacity to be a buffer.
• If carbon dioxide came upon contact with water inside the body, by the help of an enzyme called carbonic anhydrase, it will form carbonic acid.
• Carbonic acid is an unstable molecule, it wouldn’t last long, it would disintegrate in either back to being a carbon dioxide and water or turn into a bicarbonate and hydrogen ions.
• • Hydrogen ions increase or decrease the pH level. 
• As carbon dioxide increases, hydrogen ion also increases.
• Accumulation of carbon dioxide inside the body results in the addition of hydrogen ions which increases the body’s pH level making it acidic.
• • Normal pH level of the body is 7.35-7.45.
• The normal partial pressure of carbon dioxide in blood is 35-45 mmHg.