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Topic: Small intestine


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In the News (Fri 25 Jul 08)

  
  XI. Splanchnology. 2g. The Small Intestine. Gray, Henry. 1918. Anatomy of the Human Body.
The small intestine is a convoluted tube, extending from the pylorus to the colic valve, where it ends in the large intestine.
The rest of the small intestine is surrounded by the peritoneum, excepting along its attached or mesenteric border; here a space is left for the vessels and nerves to pass to the gut.
It is the strongest layer of the intestine.
www.bartleby.com /107/248.html   (3458 words)

  
 Small Intestinal Bacterial Overgrowth (SIBO) causes, symptoms, diagnosis, and treatment by MedicineNet.com
The small bowel, also known as the small intestine, is the section of the gastrointestinal tract that connects the stomach with the colon.
The small intestine is approximately 21 feet in length and begins in the duodenum (into which food from the stomach empties), followed by the jejunum, and then the ileum (which empties the food that has not been digested into the large intestine or colon).
Small intestinal bacterial overgrowth (SIBO) refers to a condition in which abnormally large numbers of bacteria (at least 100,000 bacteria per ml of fluid) are present in the small intestine and the types of bacteria in the small intestine resemble more the bacteria of the colon than the small intestine.
www.medicinenet.com /small_intestinal_bacterial_overgrowth/article.htm   (694 words)

  
 Small Intestine Cancer: Encyclopedia of Cancer
The function of the small intestine is to break down food and to remove proteins, carbohydrates, fats, vitamins, and minerals.
Adenocarcinoma is the most common cancer of the small intestine, but only accounts for 2% of all tumors in the gastrointestinal tract and 1% of all deaths related to cancer of the gastrointestinal tract.
Cancer of the small intestine is treatable and sometimes curable depending on the histology.
health.enotes.com /cancer-encyclopedia/small-intestine-cancer   (2637 words)

  
 MUSC DDC - Small Bowel
The small bowel (also referred to as the small intestine) is the specialized tubular structure between the stomach and the colon.
The "upper" portion of the small bowel (the duodenum) begins at the exit of the stomach (pylorus) and curves around the pancreas to end in the region of the left upper part of the abdominal cavity where it joins the jejunum.
Significant abnormalities of the small intestine therefore, are manifested by malabsorption of nutrients, and diarrhea.
www.ddc.musc.edu /ddc_pub/digestiveOrgans/smallBowel.htm   (452 words)

  
 (DIGESTIVE) Small Intestine
The small intestine is the primary organ of the digestive tract.
The second segment of the small intestine is known as the jejunum.
The large intestine stretches from a valve that rests between the bottom of the small intestine and the top of the large intestine, to the anus.
library.thinkquest.org /16421/1024x768/frames/VAbus/systems/Digestive/small_intestine.htm   (618 words)

  
 Diagnose-Me: Condition: Poor Small Intestine Health
The small intestine is the largest part of the gastrointestinal tract and is composed of the duodenum which is about one foot long, jejunum (5-8 feet long), and ileum (16-20 feet long).
Epithelial cells in the small intestine secrete over half a gallon of a neutral fluid daily to supply a watery substance to mix with the chyme and provide a substance to aid in electrolyte and vitamin absorption through the villi.
The small intestine is covered with villi and microvilli, which increase by a factor of 600 the surface area of the intestinal wall exposed to chyme.
www.diagnose-me.com /cond/C51451.html   (3072 words)

  
 BioMed Central | Full text | Age-related human small intestine methylation: evidence for stem cell niches
Small intestinal methylation patterns were analyzed by the same quantitative approach we applied to colon crypt methylation patterns ([10], and its Supplementary Materials).
These parameters are uncertain for the human small intestines, and the values are just guesses chosen to be consistent with the biology of the intestines, and are similar to the values we estimated for the colon [10].
Small intestine percent methylation was generally lower than published [10,17] measurements of human colon crypts, with a trend towards a slower increase with age (Figure 5), but this difference was not significant (p = 0.24, F-test).
www.biomedcentral.com /1741-7015/3/10   (4523 words)

  
 Small Intestine Cancer Treatment - National Cancer Institute
Small intestine cancer is a rare disease in which malignant (cancer) cells form in the tissues of the small intestine.
The small intestine is part of the body’s digestive system, which also includes the esophagus, stomach, and large intestine.
The types of cancer found in the small intestine are adenocarcinoma, sarcoma, carcinoid tumors, gastrointestinal stromal tumor, and lymphoma.
www.cancer.gov /cancerinfo/pdq/treatment/smallintestine/patient   (1115 words)

  
 Morbid Obesity Surgery - The Roux-en-Y Gastric Bypass Procedure Explained
The lower (distal) part of the stomach is bypassed, as is the first portion of the small intestine (duodenum and jejunum).
The end of the bypassed section of small intestine coming from the bypassed stomach is reconnected to the lower (distal) small intestine, forming a "Y".
Care is taken to ensure that sufficient small intestine is available between this junction and the large intestine to insure good absorption of essential nutrients.
www.lapobesity.com /surgery.html   (267 words)

  
 Diagnose-Me: Condition: Small Intestine Cancer
Adenocarcinoma of the small bowel is associated with Familial Polyposis Syndrome - an inherited disease in which the large bowel becomes carpeted by polyps of various dimensions during the second or third decade of life.
Adenocarcinoma of the small bowel is associated with Crohn disease, which usually occurs in the lower part of the small intestine (the ileum).
Adenocarcinoma of the small intestine and lymphoma of the small intestine are both associated with celiac disease.
www.diagnose-me.com /cond/C435499.html   (1990 words)

  
 Small Intestine Cancer - WrongDiagnosis.com
In oncology, small intestine cancer, also small bowel cancer and cancer of the small bowel, is a cancer of the small intestine.
Small intestine cancer can be subdivided into duodenal cancer (the first part of the small intestine) and cancer of the jejunum and ileum (the later two parts of the small intestine).
The prognosis of Small Intestine Cancer may include the duration of Small Intestine Cancer, chances of complications of Small Intestine Cancer, probable outcomes, prospects for recovery, recovery period for Small Intestine Cancer, survival rates, death rates, and other outcome possibilities in the overall prognosis of Small Intestine Cancer.
www.wrongdiagnosis.com /s/small_intestine_cancer/intro.htm   (551 words)

  
 SIU SOM Histology GI
The mucosa of the small intestine is characterized by evagination into plicae and villi, which increase the surface area for nutrient absorption, and by short tubular invaginations, the crypts, which provide a protected site for stem cells.
The mucosa of the small intestine is lined by a simple columnar epithelium which consists primarily of absorptive cells (enterocytes), with scattered goblet cells and occasional enteroendocrine cells.
The small intestine is divided, somewhat arbitrarily, into three regions: the duodenum, the jejunum, and the ileum.
www.siumed.edu /~dking2/erg/smallint.htm   (886 words)

  
 Small intestine - Wikipedia, the free encyclopedia
In biology the small intestine is the part of the gastrointestinal tract (gut) between the stomach and the large intestine.
Although the small intestine is much longer than the large intestine (typically 4-5 times longer), it is referred to as such due to its comparatively smaller diameter.
The small intestine is where the most chemical digestion takes place; peptides are degraded into amino acids; lipids (fats) are degraded into fatty acids and glycerol; and carbohydrates are degraded into simple sugars (e.g., glucose).
en.wikipedia.org /wiki/Small_intestine   (440 words)

  
 Motility Disorders of the Small Intestine - aboutGIMotility.org
The general function of the small intestine is the absorption of the food we eat.
Weak contractions of the small intestine are due to abnormalities in the muscle and are usually associated with diseases such as scleroderma.
Small bowel bacterial overgrowth is a result of abnormal motility in the small intestine; when the housekeeper waves do not keep the bacteria swept out because the contractions are too weak or disorganized, the bacteria grow out of control.
www.aboutgimotility.org /site/about-gi-motility/disorders-of-the-small-intestine   (725 words)

  
 Small intestine biopsy
The small-bowel biopsy is used to diagnose and confirm disease of the intestinal mucosa (the lining of the small intestine).
When fluoroscopy confirms that the capsule has passed the pylorus, small samples of small intestine tissue are obtained by the instrument's cutting edge, after which the instrument and tube are withdrawn.
A disorder of impaired absorption of nutrients by the small intestine.
www.lifesteps.com /gm/Atoz/ency/small_intestine_biopsy_pr.jsp   (1012 words)

  
 Intestine, Small Information on Healthline
The small intestine is a coiled, tube-like organ held in place by two membrane sheets attached to the walls of the abdominal cavity and referred to as the mesentery.
These are the mouth, the esophagus, the stomach, the liver, the gallbladder, the pancreas, the small intestine, the colon (large intestine), and the rectum.
The inner mucous membrane of the small intestine is not flat and uniform but folded to such a great extent that its inner lining is referred to as the mucosal folds.
www.healthline.com /galecontent/intestine-small   (969 words)

  
 Small Intestine Cancer: Tumors of the Digestive System: Merck Manual Home Edition
Introduction· Anal Cancer· Colorectal Cancer· Colorectal Polyps· Esophageal Cancer· Esophageal Tumors That Are Noncancerous· Noncancerous Tumors of the Small Intestine· Pancreatic Cancer· Pancreatic Tumors That Are Noncancerous·Small Intestine Cancer· Stomach Cancer· Stomach Tumors That Are Noncancerous
A doctor may use an endoscope (a flexible viewing tube) passed through the mouth and down to the duodenum and part of the jejunum (the upper section of the small intestine) to locate the tumor and perform a biopsy (remove a tissue sample for examination under a microscope).
Sometimes exploratory surgery is needed to identify a tumor in the small intestine.
www.merck.com /mmhe/ag/sec09/ch131/ch131g.html   (470 words)

  
 Digestive System / Regions of the Digestive System / Small & Large Intestine
The small intestine extends from the pyloric sphincter to the ileocecal valve, where it empties into the large intestine.
The small intestine finishes the process of digestion, absorbs the nutrients, and passes the residue on to the large intestine.
The small intestine follows the general structure of the digestive tract in that the wall has a mucosa with simple columnar epithelium, submucosa, smooth muscle with inner circular and outer longitudinal layers, and serosa.
training.seer.cancer.gov /module_anatomy/unit10_3_dige_region4_intestine.html   (534 words)

  
 small intestine - Search Results - MSN Encarta
Intestine, also bowels, in higher animals, the portion of the digestive tract between the stomach and anus.
main discussion, abdomen, body cavity that includes the small intestine, anatomy, diseases and disorders, effect of starvation, functions of small...
Most digestion, as well as absorption of digested food, occurs in the small intestine.
encarta.msn.com /small_intestine.html   (197 words)

  
 Small Intestine Cancer
Adenocarcinoma, lymphoma, sarcoma, and carcinoid tumors account for the majority of small intestine malignancies which, as a whole, account for only 1% to 2% of all gastrointestinal malignancies.[1-4] As in other gastrointestinal malignancies, the predominant modality of treatment is surgery when resection is possible, and cure relates to the ability to completely resect the cancer.
Carcinoid tumors of the small intestine are covered elsewhere as a separate cancer entity (refer to the PDQ summary on Gastrointestinal Carcinoid Tumor Treatment for more information).
Some 20% of malignant lesions of the small intestine are carcinoid tumors, which occur more frequently in the ileum than in the duodenum or jejunum and may be multiple.
www.medhelp.org /lib/cancernet/101175.htm   (829 words)

  
 Small intestine biopsy Encyclopedia of Medicine - Find Articles
The small-bowel biopsy is used to diagnose and confirm disease of the intestinal mucosa (the lining of the small intestine).
When fluoroscopy confirms that the capsule has passed the pylorus, small samples of small intestine tissue are obtained by the instrument's cutting edge, after which the instrument and tube are withdrawn.
A disorder of impaired absorption of nutrients by the small intestine.
findarticles.com /p/articles/mi_g2601/is_0012/ai_2601001272?lstpn=article_results&lstpc=search&lstpr=external&lstprs=other&lstwid=1&lstwn=search_results&lstwp=body_middle   (932 words)

  
 Small Intestine: Biology of the Digestive System: Merck Manual Home Edition
These parts of the small intestine are largely responsible for the absorption of fats and other nutrients.
The intestinal wall is richly supplied with blood vessels that carry the absorbed nutrients to the liver through the portal vein.
Ultimately, the small intestine absorbs most of the nutrients and all but about 1 liter of fluid before emptying into the large intestine.
www.merck.com /mmhe/sec09/ch118/ch118d.html   (359 words)

  
 UCSD Medical Center: Types of Cancer : Small Intestine Cancer
Small intestine cancer is a rare disease in which malignant cells form in the tissues of the small intestine.
The prognosis (chance of recovery) and treatment options depend on the type of small intestine cancer, whether the cancer has spread to other places in the body, whether the cancer can be completely removed by surgery and whether the cancer is newly diagnosed or has recurred.
Small intestine cancer is treated within the Gastrointestinal Cancer Unit.
health.ucsd.edu /cancer/types/smallintestine.asp   (161 words)

  
 AllRefer Health - Small Bowel Resection (Small Intestine Surgery) - Surgery & Procedures
Small bowel resection is surgical removal (resection) of a diseased portion of the small bowel (small intestine).
Small bowel resection is performed while the patient is under general anesthesia (unconscious and pain-free).
The diseased part of the small intestine (ileum) is removed and the two healthy ends are sewn back together (resected).
health.allrefer.com /health/small-bowel-resection-info.html   (471 words)

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