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Doctor insights on: The Large And Small Intestines

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Intestine (Definition)

The gastrointestinal tract starts at the mouth, travel down the tunnel (esophagus), which connects to the stomach, which then empties into the duodenum, jejunum, and ileum---the three parts of the small intestine (@25 feet). This empties into the colon or large intestine (about 5 feet), which then becomes the sigmoid colon, rectum and out the anus. So, every morsel eaten ...Read more


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What is absorbed in the large intestine?

What is absorbed in the large intestine?

Large intestine: The large intestine primarily absorbs water from the stool mixture, associated with ions, nutrients, and vitamins produced by the gut bacteria. By absorbing the water, it changes the stool from liquid to its final solid form. Hope that helps. ...Read more

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Is the colon the large intestine or the whole one?

Is the colon the large intestine or the whole one?

Colon = large intest: The colon is the last 5 feet or so of your intestines, from the rectum to the cecum, and it has altogether different functions, appearance and use than the rest of your intestines. ...Read more

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What are the primary functions of the stomach, duodenum, and large intestine?

What are the primary functions of the stomach, duodenum, and large intestine?

Digestion: The stomach is responsible for mixing food and preparing it for digestion. The enzymes which break food down into nutrients mix with the food in the duodenum, as does the bile from the liver. The nutrients are absorbed in the small intestine. Everything that is not absorbed travels to the large intestine, where water is absorbed, turning the waste from liquid to solid. ...Read more

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How quickly does swallowing air enter the small intestine? Large intestine?

How quickly does swallowing air enter the small intestine? Large intestine?

Estimate: Within a few minutes as long as no obstruction to outlet of stomach.Large intestin would probably take several hours. In a newborn who is born with airless abdomen it takes usually up to 12 hours for air to get through entire small bowel and 24 hours for entire large bowel. ...Read more

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At the ascending end of the large intestine and the horizonal beginning intestine, what can cause pain?

At the ascending end of the large intestine and the horizonal beginning intestine, what can cause pain?

Right sided abd pain: The area you describe is called the right upper quadrant of the abdomen. In addition to large bowel problems problems with the gallbladder such as gallstones could cause this pain. Other possibilities in the right upper quadrant are ulcer disease, liver problems, and pacreatitis. ...Read more

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How common are cyst in the small intestines?

How common are cyst in the small intestines?

Uncommon : Duplication cysts occur in small intestine more commonly in jejunum and ileum (45% of intestinal duplications) and are in tubular and cystic forms.These cysts are uncommon.Symptoms include abdominal distention, vomiting, bleeding, & a palpable abdominal mass. Complications include perforation, intussusception, & bowel obstruction. ...Read more

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Does the air pumped into the colon also inflate the small intestine? What part of the intestine is likely to be involved in a inguinal hernia?

Does the air pumped into the colon also inflate the small intestine?  What part of the intestine is likely to be involved in a inguinal hernia?

Yes.: Insufflated air from colonoscopy does pass the ileocecal valve and to a degree insufflate small bowel. An inguinal hernia sac may contain omentum (fatty tissue over bowel), small intestine, or colon. ...Read more

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Desctibe the parts of the small intestine?

Desctibe the parts of the small intestine?

See below: The stomach empties into the first part of the small intestine, the duodenum, where bile and pancreatic enzymes enter for digestion. Next is the jejunum and then the ileum. These are parts of the small intestine that also absorb nutrients & vitamins that then can enter into the blood stream. ...Read more

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What causes a obstruction in the small intestine?

What causes a obstruction in the small intestine?

Within and without..: The obstrction can be form something within the lumen (the passage) or within the wall or from externally (within the abdomen but outside the si). With this in mind it is possible to work through the possibilites and reach a conclusion... ...Read more

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What amount of of the small intestine can be removed safely?

What amount of of the small intestine can be removed safely?

Differs among people: Some people can lose a significant length of their intestine and still maintain relatively normal function. Other people can retain their entire intestine length and still have poor function. Historically, adults require about 100cm minimum to function without supplemental fluids or nutrition. However, this depends on presence of large intestine and the valve between the small and large intestine. ...Read more

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How can bile reach the small intestine?

Common bile duct: Bile is made in the liver and is a by-product of liver metabolism (generally broken down red blood cells cleared from the blood stream). The bile collects in the biliary system of the liver and flows to the larger bile ducts - one for the left and right lobes of the liver. These join as the common bile duct which exits the liver. The duct joins the pancreatic duct and flows into the duodenum. ...Read more

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Does diarrhea occur in your small or/and large intestine?

Does diarrhea occur in your small or/and large intestine?

Sites of diarrhea: Both! doctors often distinguish causes of diarrhea as "secretory" or "osmotic", into which categories may fit inflammatory, ischemic, infectious, functional, malabsorption/maldigestion. Any of these problems can be primarily small or large intestinal. A healthy, normally-motile colon can absorb up to a gallon of fluid a day, and a healthy, normally-motile small intestine can absorb twice that. ...Read more

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Which test looks at the small intestine?

Which test looks at the small intestine?

Several tests: Several tests examine the intestine: endoscopy, exploratory surgery, ct scan, x-ray, gastrograffin enema, ultrasound. Each test is used based upon the clinical presentation and indication. The least invasive and least expensive are x-ray and ultrasound. They also provide the least information. Ct scan provides a lot of info, but requires more radiation. Endoscopy and surgery have more risks. ...Read more

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What are the consequences of rapturing the large intestine?

What are the consequences of rapturing the large intestine?

Infection: Millions of bacteria reside in the large intestine. With rupture, the bacteria leak into the abdominal cavity, creating severe inflammation and potential entry of these bacteria into the bloodstream, leading to sepsis or even death if untreated. Depending on the cause & location of the rupture (and luck), adjacent tissues can potentially "band-aid" the whole; other times, surgery is necessary. ...Read more

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How far into the small intestine can a colonoscopy and endoscopy see?

May reach...: ...both the 3rd portion of the duodenum from the top procedure, and terminal ileum from the bottom testing. That still however leaves most of the small bowel non-visualized by the routine studies you mentioned. ...Read more

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I have an adenomatous polyp on the valve between the large and small intestines in a fold. Biopsy showed not cancer. What is the best way to remove it?

I have an adenomatous polyp on the valve between the large and small intestines in a fold. Biopsy showed not cancer. What is the best way to remove it?

Excesion: Excision and complete removal of the adenomatous tissue is considered the treatment of choice. There are several techniques for polyp removal; biopsy forceps, snare excision, fulguration and piecemeal excision of large polyps. The procedure depends of the location, surgery, laparotomy, Laparoscopy, sigmoidoscopy. The use of NSAD has been shown to significantly reduce the size and number . ...Read more

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Bowel (Definition)

The bowel is the intestinal tract in the body. The small intestine ...Read more