How Parietal Cells Or Oxyntic Cells Secrets HCL ? скачать в хорошем качестве

How Parietal Cells Or Oxyntic Cells Secrets HCL ?

The stomach is a muscular organ that is responsible any potential Pathogenic micro-Organisms that may have been ingested. It is an acidic environment with PH that Can Vary 1-3.5. HCL is produced by the parietal cells of the stomach. To begin with, water (H2O) & Carbondioxide (Co₂) Combine within the Parietal Cell Cytoplasm to produce Carbonic acid (H₂Co3), Which is Catalysed by Enzyme - Carbonic anhydrase. Combonic acid then, dissociates into hydrogen ion (H+) & a bicarbonate ion (HCO3-). The H+ ion that is formed is transported into stomach lumen via the H+/K+ ATPase ion Pump (a transporter Protein) This Pump uses ATP as an energy source to exchange K+ ions into the Parietal Cells of Stomach with H+ ions. The Bicarbonate ion is transported out of the Cell into the blood via Anion exchanger (Cl-/HCo3- Exchanger), which transports the bicarbonate ion (HCO3-) out of Cell in exchange for a chloride ion (CI-). This Chloride ion exchanger is then transported into the stomach lumen via a Chloride channel. This results in both H+ & Cl- ions being present Within the stomach lumen. Their opposite charges, leads to them associating with each other, to form HCL (Hydrochloric Acid).