intestinal flora
(noun)
the bacterial colonies that normally live in the digestive tract of animals
Examples of intestinal flora in the following topics:
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Elimination
- After food passes through the small intestine, the undigested food material enters the colon, where most of the water is reabsorbed.
- Recall that the colon is also home to the microflora called "intestinal flora" that aid in the digestion process .
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Digestive Processes of the Large Intestine
- In the large intestine, a host of microorganisms known as "gut flora" help digest remaining food matter and create vitamins.
- The large intestine takes about 16 hours to finish up the remaining processes of the digestive system .
- Gut flora consists of microorganisms that live in the digestive tracts of animals and is the largest reservoir of human flora.
- The human body, which consists of about 10 trillion cells, carries about ten times as many microorganisms in the intestines.
- Summarize the digestive processes of the gut flora of the large intestine
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Absorption and Feces Formation in the Large Intestine
- The large intestine absorbs water from the chyme and stores feces until they can be defecated.
- After the food has been passed through the small intestine, it enters the large intestine.
- Within the large intestine, digestion is retained long enough to allow fermentation via gut bacteria, which break down some of the substances that remain after processing in the small intestine.
- Intestinal flora are also essential in the development of certain tissues, including the cecum and lymphatics.
- Describe the process of absorption and feces formation in the large intestine
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Innate Resistance
- There is good evidence that re-introduction of probiotic flora, such as pure cultures of the lactobacilli normally found in unpasteurized yogurt, helps restore a healthy balance of microbial populations in intestinal infections in children and encouraging preliminary data in studies on bacterial gastroenteritis and inflammatory bowel diseases.
- In this context, gut is synonymous with intestinal, and flora with microbiota and microflora, the word microbiome is also in use.
- The gut flora is the human flora of microorganisms that normally live in the digestive tract and can perform a number of useful functions for their hosts.
- It is the largest reservoir of human flora.
- In this context, gut is synonymous with intestinal, and flora with microbiota and microflora.
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Digestive System: Small and Large Intestines
- Nutrients are absorbed in the small intestine and waste is prepared for elimination in the large intestine.
- The ileum is the last part of the small intestine.
- The human large intestine is much smaller in length than the small intestine, but larger in diameter.
- The colon, home to many bacteria or "intestinal flora" that aid in the digestive processes, can be divided into four regions: the ascending colon, the transverse colon, the descending colon, and the sigmoid colon.
- The rectum is the terminal end of the large intestine.
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Lactose Intolerance
- Secondary, acquired, or transient lactase deficiency is caused by an injury to the small intestine, usually during infancy, from acute gastroenteritis, diarrhea, chemotherapy, intestinal parasites, or other environmental causes.
- Lactose cannot be directly absorbed through the wall of the small intestine into the bloodstream so, in the absence of lactase, it passes intact into the colon.
- To assess lactose intolerance, intestinal function is challenged by ingesting more dairy products than can be readily digested.
- This might be caused by slow intestinal transit and intestinal flora changes during pregnancy.
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Normal Gastrointestinal Microbiota
- Gut flora consist of microorganisms that live in the digestive tracts of animals and are the largest reservoir of human flora.
- Gut flora consists of microorganisms that live in the digestive tracts of animals and is the largest reservoir of human flora .
- In this context, gut is synonymous with intestinal, and flora with microbiota and microflora; the word microbiome is also in use.
- The human body, consisting of about 10 trillion cells, carries about ten times as many microorganisms in the intestines.
- In 2009, scientists from INRA (France) highlighted the existence of a small number of species shared by all individuals constituting the human intestinal microbiota phylogenetic core.
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Suppression and Alteration of Microbiota by Antimicrobials
- The gut flora in the human intestinal system has hundreds of species of microbes and over 100 trillion individual microbes; in comparison, the human body has around 10 trillion cells .
- An example is gut flora getting into the body's blood stream.
- In the case of the gut flora, this may impair the ability of a patient to properly metabolize food.
- If advantageous bacteria do not repopulate the intestine, this can lead to serious malnutrition problems.
- The oblong structures are Escherichia coli (E. coli), a symbiotic bacteria found in the human intestinal system.
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Bacterial Flora
- The large intestine absorbs some of the products formed by the bacteria inhabiting this region.
- The normal flora is also essential in the development of certain tissues, including the cecum and lymphatics.
- Bacterial flora is also involved in the production of cross-reactive antibodies.
- These are antibodies produced by the immune system against the normal flora, that are also effective against related pathogens, thereby preventing infection or invasion.
- A mucus layer protects the large intestine from attacks from colonic commensal bacteria.
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Overview of Human-Microbial Reactions
- Gut flora consists of microorganisms that live in the digestive tracts of animals and is the largest reservoir of human flora.
- The human body, consisting of about 10 trillion cells, carries about ten times as many microorganisms in the intestines.
- Bacteria make up most of the flora in the colon and up to 60% of the dry mass of feces.
- Fungi and protozoa also make up a part of the gut flora, but little is known about their activities.
- Skin flora are usually non-pathogenic and either commensal or mutualistic.