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  2. Catarrh - Wikipedia

    en.wikipedia.org/wiki/Catarrh

    Catarrh (/ k ə ˈ t ɑːr / kə-TAR) is an inflammation of mucous membranes in one of the airways or cavities of the body, [1] [2] usually with reference to the throat and paranasal sinuses. It can result in a thick exudate of mucus and white blood cells caused by the swelling of the mucous membranes in the head in response to an infection.

  3. Gastrointestinal wall - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_wall

    The coordinated contractions of these layers is called peristalsis and propels the food through the tract. Food in the GI tract is called a bolus (ball of food) from the mouth down to the stomach. After the stomach, the food is partially digested and semi-liquid, and is referred to as chyme. In the large intestine the remaining semi-solid ...

  4. Gastritis - Wikipedia

    en.wikipedia.org/wiki/Gastritis

    Gastritis is the inflammation of the lining of the stomach. [1] It may occur as a short episode or may be of a long duration. [1] There may be no symptoms but, when symptoms are present, the most common is upper abdominal pain (see dyspepsia). [1]

  5. Gastric mucosa - Wikipedia

    en.wikipedia.org/wiki/Gastric_mucosa

    Diagram of the alkaline mucous layer in the stomach with mucosal defense mechanisms. The gastric mucosa is the mucous membrane layer of the stomach, which contains the gastric pits, to which the gastric glands empty. In humans, it is about one mm thick, and its surface is smooth, soft, and velvety.

  6. Stomach - Wikipedia

    en.wikipedia.org/wiki/Stomach

    The stomach is involved in the gastric phase of digestion, following the cephalic phase in which the sight and smell of food and the act of chewing are stimuli. In the stomach a chemical breakdown of food takes place by means of secreted digestive enzymes and gastric acid .

  7. New norovirus strain is stoking the stomach flu surge - AOL

    www.aol.com/news/norovirus-strain-stoking...

    A surge in norovirus cases might be explained by a new strain of the virus, which now reportedly makes up a majority of outbreaks across the U.S.. This winter’s dominant norovirus strain is a ...

  8. Human digestive system - Wikipedia

    en.wikipedia.org/wiki/Human_digestive_system

    The stomach is a distensible organ and can normally expand to hold about one litre of food. [22] This expansion is enabled by a series of gastric folds in the inner walls of the stomach. The stomach of a newborn baby will only be able to expand to retain about 30 ml.

  9. Gastrointestinal tract - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_tract

    Whilst the muscularis externa is similar throughout the entire gastrointestinal tract, an exception is the stomach which has an additional inner oblique muscular layer to aid with grinding and mixing of food. The muscularis externa of the stomach is composed of the inner oblique layer, middle circular layer, and the outer longitudinal layer.