Gourt > Health > Conditions and Diseases > Cancer > Gastrointestinal > Colorectal (1)
For the article about the punctuation symbol, see Colon (punctuation). In anatomy of the digestive system, the colon is the part of the intestine from the cecum ('caecum' in British English) to the rectum. Its primary purpose is to extract water from feces. In mammals, it consists of the ascending colon, transverse colon, the descending colon, the sigmoid colon, and the rectum. The colon from cecum to the mid transverse colon is also known as the right colon. The remainder is known as the left colon.
Role in digestion
The large intestine comes after the small intestine in the digestive tract and measures approximately 1.5 meters in length. Although there are differences in the large intestine between different organisms, the large intestine is mainly responsible for storing waste, reclaiming water, maintaining the water balance, and absorbing some vitamins, such as vitamin K.
By the time the chyme has reached this tube, almost all nutrients and 90% of the water have been absorbed by the body. At this point some electrolytes like sodium, magnesium, and chloride are left as well as indigestible carbohydrates known as dietary fiber. As the chyme moves through the large intestine, most of the remaining water is removed, while the chyme is mixed with mucus and bacteria known as gut flora, and becomes feces. The bacteria break down some of the fiber for their own nourishment and create acetate, propionate, and butyrate as waste products, which in turn are used by the cell lining of the colon for nourishment. This is an example of a symbiotic relationship and provides about 100 Calories a day to the body. The large intestine produces no digestive enzymes — chemical digestion is completed in the small intestine before the chyme reaches the large intestine. The pH in the colon varies between 5.5 and 7 (slightly acidic to neutral).
More on [ Colon (anatomy) ]
Headed to colorectal hell on this Merry Christmas Day!!!
morgan_dunn (Morgan Dunn) Fri, 25 Dec 2009 11:20:47 -0000
Headed to colorectal hell on this Merry Christmas Day!!!
MHeaded to colorectal hell on this Merry Christmas Day!!!
morgan_dunn (Morgan Dunn) Fri, 25 Dec 2009 11:18:56 -0000
MHeaded to colorectal hell on this Merry Christmas Day!!!
New blog post: How To Prevent Colorectal Colon Cancer « cancer crisis research http://bit.ly/7HWAlK
maperkinson (Matarah Perkinsons) Fri, 25 Dec 2009 08:33:02 -0000
New blog post: How To Prevent Colorectal Colon Cancer « cancer crisis research http://bit.ly/7HWAlK
New blog post: Canadian Patient in India for Colorectal Cancer Surgery « cancer ... http://bit.ly/7Xa77Q
maperkinson (Matarah Perkinsons) Fri, 25 Dec 2009 05:00:06 -0000
New blog post: Canadian Patient in India for Colorectal Cancer Surgery « cancer ... http://bit.ly/7Xa77Q
RT @mbrosen: @antderosa For Mom and others: Free or Low-Cost Mammograms in New York City & State (Colorectal cancer screening, too http: ...
antderosa (Anthony De Rosa) Fri, 25 Dec 2009 02:26:13 -0000
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mbrosen (Matt Rosen) Fri, 25 Dec 2009 01:19:38 -0000
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ALtruis Biomedical Network: Colon Cancer - Addresses risk factors, diagnosis, treatment and prognosis.
An Overview of Colonoscopy - Discussion about this procedure.
Meta Description: [ Information and a discussion about colonoscopy ]
ASCRS: Colorectal Cancer - Brief fact sheet from the American Society of Colon and Rectal Surgeons.
Berkshire Surgical Information - Provides instruction for colonoscopy preparation and practical information for colon cancer surgery.
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Bowel Cancer Screening: Priory Hospital - Information on colon cancer and screening in the Midlands, UK. Includes a FAQ, links, and an interview with a surgeon specialist.
Meta Description: [ Bowel cancer screening from the Priory Hospital - 80% curable if caught before symptoms develop ]
BUPA: Bowel Cancer - Fact sheet from this UK entity includes causes, symptoms and treatment.
Meta Description: [ BUPA health factsheet - colonic cancer can cause a number of symptoms, depending on where in the intestine the tumour is... ]
Cancer News: Laparoscopic Surgery for Colon Cancer - Presents a discussion of the procedure.
Meta Description: [ Laparoscopy, with small incisions and quick recovery, has revolutionized abdominal surgical. Although mostly applied to patients with benign disease, minimally invasive surgery is now being used in patients with malignant disease as well. This article focuses on the advantages and disadvantages... ]
Cancer Treatment Centers of America: Colorectal - Gives information on research, risk factors, detection, symptoms, diagnosis and treatment.
Meta Description: [ Cancer hospital for patients who believe in conventional colon cancer treatments along with alternative care and medicine. We believe in empowering the patients with quality colon cancer information and treatment options. ]
CancerBACUP: Cancer of the Large Bowel Information Centre - Provides information about the causes and treatments of this disease.
Meta Description: [ Information on cancer of the large bowel (colon & rectum) and small bowel cancer, including causes, symptoms, diagnosis, treatments, side effects and further resources. ]
Cancerlinks.org: Colon Cancer - Extensive listing of web sites.
Meta Description: [ A New and Novel web site model organizing web pages using Library of Congress Classification. Each page is listed showing author, title, subject and when updated. Our information is credible and current. ]
CEA-Scan - General information on colorectal cancer with emphasis on a monoclonal antibody diagnostic test.
Meta Description: [ If you've had colon or rectal cancer, you're at risk for recurrence. This new site, from Immunomedics, Inc., keeps patients and professionals up-to-date on the latest information on colorectal cancer, and on CEA-Scan(arcitumomab), an imaging test that can pick up metastatic disease while potentia... ]
Centers for Disease Control and Prevention: Colorectal Screening - The Screen for Life campaign promotes regular procedures for those 50 years and older.
Meta Description: [ The Screen for Life campaign informs men and women, aged 50 years or older, about the importance of having regular colorectal cancer screening tests. ]
Colon Cancer Screening - Article on symptoms, prevention and common terms.
Colon Polyps and Colon Cancer - Thorough discussion of polyps and tumors in lay terms.
Colorectal Cancer Week - News and information about the prevention, diagnosis and treatment. Small subscription charge.
Meta Description: [ Colorectal Cancer Week - News and information about the prevention, diagnosis and treatment of Colon and Rectal Cancer. The site is the most comprehensive source of Colorectal Cancer news, updated daily, with information on developments in Colorectal Cancer. ]
El Salvador Atlas of Gastrointestinal Video Endoscopy - Case reports of colon cancer with associated visual clips of the pathology.
eMedicine Health: Colon Cancer - Consumer health resource center providing an overview of the condition and its causes, symptoms and treatment.
Meta Description: [ The human colon is a muscular, tube-shaped organ measuring about 4 feet long. It extends from the end of your small bowel to your anus, twisting and turning through your ... ]
Fecal Occult Blood Test - Explanation of what the FOBT does, two methods used, why it is performed.
General Practice Notebook: Colorectal Cancer - Clinically-oriented information.
Generations: Colorectal Cancer Registry in Hong Kong - Explains what this Asian-based entity does, and provides access to a support group and a newsletter.
Meta Description: [ The Hong Kong Gastrointestinal Cancer Registry for information and help for those people and their families affected by Colon Cancer ]
Imperial Cancer Research Fund - UK charity offers information about the prevention, diagnosis and treatment of bowel cancer. Also gives details on fundraising.
Meta Description: [ This section of CancerHelp UK tells you about bowel cancer (colorectal cancer). It includes information about causes and symptoms of bowel cancer, treatment, living with bowel cancer, and current research. ]
ISOPAH Clinics Australia - Encourages the prevention, screening and early diagnosis of colorectal cancer.
Jackson Gastroenterology: Colon Polyps and Cancer - Patient information about this cancer and its prevention.
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liver disorders, and nutrition. Endoscopic procedures that help in diagnosis
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Laparoscopic Colorectal Surgery - Pictures and movies on how these procedures are performed.
Lynn's Bowel Cancer Campaign - Information and support including symptoms, diagnosis and practice guidelines by this UK initiative headed by Lynn Faulds Wood, a TV consumer advocate.
Mayo Clinic: Colorectal Cancer - Gives information about causes, symptoms, diagnosis, treatment, prevention and coping strategies.
Meta Description: [ Colon cancer — Comprehensive overview covers signs, symptoms and treatment of colon and rectal cancers. ]
MCW Colorectal Cancer: Risk Factors and Screening - Discussion from the Medical College of Wisconsin Physicians and Clinics.
Meta Description: [ Screening tests can find colorectal cancer early, when treatment works best. When colorectal cancer is detected in the earliest stage of the disease, the survival rate is 96%. ]
Medicare.gov: Colorectal Cancer - Gives general information about the condition including links to institutional sources. Also links to related Spanish language publications.
Meta Description: [ This section of Medicare.gov contains links to websites with information on colon cancer. ]
Medicine Online: Colon Cancer Information Library - Collection of articles and information about this form of cancer.
Meta Description: [ Find in depth colon cancer information on Meds.com. We offer detailed information on cancer of colon, colorectal cancer and colon cancer treatment with Camptostar for heathcare professionals, doctors, patients and other interested consumers. Meds.com offers medical information and education in on... ]
MEDLINEplus: Colorectal Cancer - U.S. National Library of Medicine compilation which provides links to select related subjects.
Meta Description: [ Colorectal Cancer ]
NCI: Colon and Rectal Cancer - Resource of the U.S. National Cancer Institute addresses screening, symptoms, diagnosis, treatment and clinical trials.
NEJM: Colorectal Cancer - Article selections from the New England Journal of Medicine in related areas.
Meta Description: [ The Colorectal Cancer collection covers topics such as colonoscopy, adenomatous polyposis, and occult-blood screening and includes research articles, case reports, reviews, and editorial commentary. ]
NYU: Virtual Colonoscopy - Use of an imaging technique for screening at the New York University School of Medicine.
Oncologychannel: Colon Cancer - Outline view of this condition.
Meta Description: [ Cancers of the colon and rectum are often discussed together under the name colorectal cancer. Colon cancer is the common name for this common cancer. ]
Prevent-Cancer: Colon Cancer Risks - Shows the risk of personal disease based on quiz answers, and finds local specialists and testing centers based on a zip-code look-up.
Meta Description: [ Shows the risk of colon cancer personal disease based on a colon cancer-related risks quiz answers, and finds local specialists and testing centers based on a zip-code look-up. ]
RadiologyInfo: Colorectal Cancer - Guide to radiation therapy including treatment options, procedure description, side-effects and follow-up protocol.
Meta Description: [ Current and accurate information for patients about Colorectal Cancer. Learn about treatment options, how the therapy is performed, what happens during therapy, common side effects and risks. ]
Rhode Island Cancer Council: Colorectal Cancer - Fact sheet presentation on many aspects of the disease including surgery and other treatment options.
Meta Description: [ Cancer fact sheet describing colorectal cancer treatment options. ]
Testimony on Medicare Colon Cancer Prevention Efforts - Presentation to the Senate Special Committee on Aging discussing Medicare's efforts to increase awareness and screening for colon cancer.
The Colon Cancer Project - Conventional, experimental and alternative therapies.
University of Chicago: Section of Gastroenterology - Overview of colorectal cancer aimed at both the lay and professional level.
What You Need to Know about Cancer of the Colon and Rectum - Online brochure for patients and their caregivers from the U.S. National Cancer Institute.
Meta Description: [ Information about detection, symptoms, diagnosis, and treatment of colon and rectal cancer. NIH Publication No. 06-1552 ]
Yahoo Health: Colorectal Cancer - Information including symptoms, diagnosis, staging, treatment and clinical trials.
LIve Webcast: Advances in Colorectal Cancer Therapies |
