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  2. Gut microbiota - Wikipedia

    en.wikipedia.org/wiki/Gut_microbiota

    About 99% of the large intestine and feces flora are made up of obligate anaerobes such as Bacteroides and Bifidobacterium. [35] Factors that disrupt the microorganism population of the large intestine include antibiotics, stress, and parasites. [5] Bacteria make up most of the flora in the colon [36] and accounts for 60% of fecal nitrogen. [6]

  3. Large intestine - Wikipedia

    en.wikipedia.org/wiki/Large_intestine

    The large intestine, also known as the large bowel, is the last part of the gastrointestinal tract and of the digestive system in tetrapods. Water is absorbed here and the remaining waste material is stored in the rectum as feces before being removed by defecation . [ 1 ]

  4. Gastrointestinal tract - Wikipedia

    en.wikipedia.org/wiki/Gastrointestinal_tract

    The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the digestive system that leads from the mouth to the anus.The GI tract contains all the major organs of the digestive system, in humans and other animals, including the esophagus, stomach, and intestines.

  5. Human digestive system - Wikipedia

    en.wikipedia.org/wiki/Human_digestive_system

    The cecum is a pouch marking the division between the small intestine and the large intestine. It lies below the ileocecal valve in the lower right quadrant of the abdomen. [33] The cecum receives chyme from the last part of the small intestine, the ileum, and connects to the ascending colon of the large intestine. At this junction there is a ...

  6. List of human microbiota - Wikipedia

    en.wikipedia.org/wiki/List_of_human_microbiota

    Large intestine Providencia spp Feces Pseudomonas aeruginosa: Large intestine, small intestine (Ileon) Roseburia spp Large intestine Rothia dentocariosa: Mouth Ruminococcus spp Cecum, large intestine Ruminococcus bromii: Large intestine Sarcina spp Large intestine Staphylococcus aureus: Mouth, large intestine, small intestine (Ileon ...

  7. Digestion - Wikipedia

    en.wikipedia.org/wiki/Digestion

    The large intestine primarily serves as a site for fermentation of indigestible matter by gut bacteria and for resorption of water from digests before excretion. In mammals , preparation for digestion begins with the cephalic phase in which saliva is produced in the mouth and digestive enzymes are produced in the stomach .

  8. Enterohepatic circulation - Wikipedia

    en.wikipedia.org/wiki/Enterohepatic_circulation

    Although 20% of the secreted bilirubinoid bile is reabsorbed by the small intestine, [2] conjugated bilirubin is not reabsorbed in small intestine. All conjugated bilirubin in the large intestine is metabolised by colonic bacteria to urobilinogen, which is then further oxidized to urobilin and stercobilin. Urobilin, stercobilin and their ...

  9. Enterocyte - Wikipedia

    en.wikipedia.org/wiki/Enterocyte

    Enterocytes, or intestinal absorptive cells, are simple columnar epithelial cells which line the inner surface of the small and large intestines. A glycocalyx surface coat contains digestive enzymes. Microvilli on the apical surface increase its surface area.