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2. Gastric acid - Wikipedia

   en.wikipedia.org/wiki/Gastric_acid

   Gastric acid or stomach acid is the acidic component – hydrochloric acid of gastric juice, produced by parietal cells in the gastric glands of the stomach lining. In humans, the pH is between one and three, much lower than most other animals, but is very similar to that of carrion eating carnivores , needing protection from ingesting pathogens .

3. Parietal cell - Wikipedia

   en.wikipedia.org/wiki/Parietal_cell

   Parietal cells (also known as oxyntic cells) are epithelial cells in the stomach that secrete hydrochloric acid (HCl) and intrinsic factor. These cells are located in the gastric glands found in the lining of the fundus and body regions of the stomach. [ 1 ]

4. Gastric glands - Wikipedia

   en.wikipedia.org/wiki/Gastric_glands

   The gastric mucosa is covered in surface mucous cells that produce the mucus necessary to protect the stomach's epithelial lining from gastric acid secreted by parietal cells in the glands, and from pepsin, a secreted digestive enzyme. Surface mucous cells follow the indentations and partly line the gastric pits.

5. Foveolar cell - Wikipedia

   en.wikipedia.org/wiki/Foveolar_cell

   The mucus produced by these cells is extremely important, as it prevents the stomach from digesting itself. [5] Parietal cells produce potent hydrochloric acid, which damages cells. Gastric chief cells produce pepsinogen, which is activated by the acid to form pepsin. Pepsin is a protease that can digest and damage stomach cells.

6. Chief cell - Wikipedia

   en.wikipedia.org/wiki/Chief_cell

   The gastric chief cell (also known as a zymogenic cell or peptic cell) is a cell in the stomach that releases pepsinogen [1] and chymosin.Pepsinogen is activated into the digestive enzyme pepsin when it comes in contact with hydrochloric acid produced by gastric parietal cells. [2]

7. Enterochromaffin-like cell - Wikipedia

   en.wikipedia.org/wiki/Enterochromaffin-like_cell

   Enterochromaffin-like cells or ECL cells are a type of neuroendocrine cell found in the gastric glands of the gastric mucosa beneath the epithelium, in particular in the vicinity of parietal cells, that aid in the production of gastric acid via the release of histamine. They are also considered a type of enteroendocrine cell. [1]

8. Gastrointestinal physiology - Wikipedia

   en.wikipedia.org/wiki/Gastrointestinal_physiology

   G Cells in stomach ECL cells; parietal cells None Increases acid secretion, increases mucus growth Stimulates gastric contraction None Peptides and amino acids in lumen; gastrin releasing peptide and ACh in nervous reflexes Cholecystokinin (CCK) Endocrine I cells of the small intestine; neurons of the brain and gut

9. G cell - Wikipedia

   en.wikipedia.org/wiki/G_cell

   A G cell or gastrin cell is a type of cell in the stomach and duodenum that secretes gastrin. It works in conjunction with gastric chief cells and parietal cells. G cells are found deep within the pyloric glands of the stomach antrum, and occasionally in the pancreas [1] and duodenum. The vagus nerve innervates the G cells.