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  2. Mucus - Wikipedia

    en.wikipedia.org/wiki/Mucus

    The mucus is basic, while the stomach acid (A) is acidic. In the human digestive system, mucus is used as a lubricant for materials that must pass over membranes, e.g., food passing down the esophagus. Mucus is extremely important in the gastrointestinal tract.

  3. Foveolar cell - Wikipedia

    en.wikipedia.org/wiki/Foveolar_cell

    Pepsin is a protease that can digest and damage stomach cells. To prevent these disastrous effects, mucus and bicarbonate ions (HCO 3 −) are secreted by the foveolar cells. The mucus allows the acid at pH above 4 to penetrate lining, but below pH 4 (i.e. when acid is more concentrated) the acid cannot penetrate the mucus.

  4. Alkaline mucus - Wikipedia

    en.wikipedia.org/wiki/Alkaline_mucus

    Alkaline mucus exists in the human eye, stomach, saliva, and cervix. [5] In the stomach, alkaline mucus is secreted by gastric glands in the gastric mucosa of the stomach wall. [6] Secretion of alkaline mucus is necessary to protect the mucous membrane of the stomach from acids released during digestion. [6]

  5. Intestinal mucosal barrier - Wikipedia

    en.wikipedia.org/wiki/Intestinal_mucosal_barrier

    The mucus prevents large particles from contacting the epithelial cell layer while allowing small molecules to pass. The mucus also facilitates passage of the luminal contents along the length of the intestines, protects the epithelial cells from digestive enzymes , and prevents the direct contact of microorganisms with the epithelial layer.

  6. Gastrointestinal wall - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_wall

    Goblet cells secrete mucus, which lubricates the passage of food along and protects the intestinal wall from digestive enzymes. In the small intestine, villi are folds of the mucosa that increase the surface area of the intestine. The villi contain a lacteal, a vessel connected to the lymph system that aids in the removal of lipids and tissue ...

  7. Gastrointestinal physiology - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_physiology

    Every day, seven liters of fluid are secreted by the digestive system. This fluid is composed of four primary components: ions, digestive enzymes, mucus, and bile. About half of these fluids are secreted by the salivary glands, pancreas, and liver, which compose the accessory organs and glands of the digestive system.

  8. Doctors Say This Is How You Can Loosen and Clear Mucus From ...

    www.aol.com/lifestyle/doctors-loosen-clear-mucus...

    Controlled cough is a mucus-clearing technique that involves coughing in a controlled manner. This technique can help dislodge mucus without irritating your airways. Here’s how to try the ...

  9. Gastric glands - Wikipedia

    en.wikipedia.org/wiki/Gastric_glands

    Their secretions make up the digestive gastric juice. The gastric glands open into gastric pits in the mucosa. 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 ...