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Define Colon Anatomy To Colon Health
The colon is the last portion of the digestive system in most vertebrates; it extracts water & salt from solid wastes before they are eliminated from the body, and is the organ in which flora-aided (largely bacteria) fermentation of unabsorbed material occurs.
The colon is a sewerage system, but by neglect and abuse it becomes a cesspool. When itís clean and normal we are well, feeling great and happy again. In fact, feeling great is one of many benefits of a colon cleansing.
The location of the parts of the colon are either in the
abdominal cavity or behind it in the retroperitoneum. The
colon in those areas is fixed in location.
Arterial supply to the colon comes from branches of the
superior and inferior mesenteric arteries. Flow between these
two systems communicates via a "marginal artery" that runs
parallel to the colon for its entire length. The arc of Riolan, or the meanering mesenteric
artery, is a variable vessel conecting the proximal SMA to the
proximal IMA that can be extremely important if either vessel is occluded.
Venous drainage usually mirrors colonic arterial supply, with the inferior mesenteric vein draining into the splenic vein, and the superior mesenteric vein joining the splenic vein to form the portal vein that then enters the liver.
Lymphatic drainage from the entire colon and proximal two-thirds of the rectum is to the paraortic nodes that then drain into the cisterna chyli. The lymph from the remaining rectum and anus can either follow the same route, or drain to the internal illiac and superficial inguinal nodes. The dentate line only roughly marks this transition.
The ascending colon, on the right side of the abdomen, is about 25 cm long in humans. It is the part of the colon from the cecum to the hepatic flexure (the turn of the colon by the liver). It is secondarily retroperitoneal in most humans. In ruminant grazing animals, the cecum empties into the spiral colon.
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The transverse colon is the part of the colon from the hepatic flexure (the turn of the colon by the liver) to the splenic flexure (the turn of the colon by the spleen). The transverse colon hangs off the stomach, attached to it by a wide band of tissue called the greater omentum. On the posterior side, the transverse colon is connected to the posterior abdominal wall by a mesentery known as the transverse mesocolon.
The transverse colon is encased in peritoneum, and is therefore mobile (unlike the parts of the colon immediately before and after it). More cancers form as the large intestine goes along and the contents become more solid in order to form feces.
The descending colon is the part of the colon from the splenic flexure to the beginning of the sigmoid colon. It is retroperitoneal in two-thirds of humans. In the other third, it has a (usually short) mesentery. Arterial supply comes via the left colic artery.
The sigmoid colon is the part of the large intestine after the descending colon and before the rectum. The name sigmoid means S-shaped (see ). The walls of the sigmoid colon are muscular, and contract to increase the pressure inside the colon, causing the stool to move into the rectum. Sigmoidoscopy is a common diagnostic technique used to examine the sigmoid colon.
One variation on the normal anatomy of the colon occurs when extra loops form, resulting in a longer than normal organ. This condition, referred to as redundant colon, typically has no direct major health consequences, though rarely volvulus occurs resulting in obstruction and requiring immediate medical attention. A significant indirect health consequence is that use of a standard adult colonoscope is difficult and in some cases impossible when a redundant colon is present, though specialized variants on the instrument (including the pediatric variant) are useful in overcoming this problem.
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 one hundred 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.
There are a number of diseases or disorders of the colon:
* Angiodysplasia of the colon
* Chronic functional abdominal pain
* Colon cancer
* Crohn's disease
* Hirschsprung's disease (aganglionosis)
* Irritable bowel syndrome
* Polyposis (see also Polyp)
* Pseudomembranous colitis
* Ulcerative colitis and toxic megacolon
Sigmoidoscopy is an internal examination of the lower large bowel (colon), using an instrument called a sigmoidoscope. The sigmoidoscope is a small camera attached to a flexible tube. It is inserted into the colon to examine the rectum, and the sigmoid and descending portions of the colon. Alternative Names Proctoscopy; Proctosigmoidoscopy
All you have to do to keep your colon clean is to eat a lot of fruits and vegetables, and pay attention to what you eat. This does not mean that you can't have chips and chocolate. What it does mean, is that sometimes you should think about picking up an apple instead of a bag of chips for a snack. Following a few of these simple steps can actually make all of the difference to your body.
You will find that you have more energy. That's because your system will more efficiently convert the food you eat into usable energy. Which means you can eat less to satisfy the calorie count you need each day. As a bonus, you'll enjoy clearer, healthier skin and a slender profile. And the truth is, keeping your colon clean just might give you a chance to live a long and healthy life...
When your colon is clean, you feel better, arenít you worth a healthier body?
In a Double Blind clinical study conducted by Global Clinicals in 2009, results indicated that Digest It Colon Cleanse relieved constipation safely. The present data demonstrates that the Digest It Colon Cleanse was well tolerated and safe, as indicated by normal ranging physiological and clinical chemistry parameters across the two groups at 14 days.
Anteriorly it is related to the coils of small intestine, the right edge of the greater omentum, and the anterior abdominal wall. Posteriorly, it is related to the iliacus, the iliolumbar ligament, the quadratus lumborum, the transverse abdominis, the diaphragm at the tip of the last rib; the lateral cutaneous, ilioinguinal, and iliohypogastric nerves; the iliac branches of the iliolumbar vessels, the fourth lumbar artery, and the right kidney. Arterial supply of the ascending colon comes from the ileocolic artery and right colic artery, both branches of the SMA. While the ileocolic artery is almost always present, the right colic can be absent in 5-15% of individuals.