The colon and how its bacteria helps digest food. The colon is a part of the digestive system it is also called the large intestine. The large intestine or colon is shorter than the small intestine but has a larger diameter. The length of the colon is approximately 5 feet long.
In summary, 1  Both endoscopy and colonoscopy are the procedures to visualise the gastro intestinal path (Food canal). 2  The differences are endoscopy will be inserted from the mouth; colonoscopy will be inserted from the anus. 3  Unlike in colonoscopy, bowel preparation is not needed to do the endoscopy.
A colonoscopy is an examination of the lower part of the gastrointestinal tract, which is called the colon or large intestine (bowel). Colonoscopy is performed by an Gastroenterologist, who is a physician with special training in endoscopy/colonoscopy procedures.The colonoscope is inserted into the anus and advanced through the entire colon (to the cecum where the appendix is) and possibly a short distance into the small intestine.olonoscopy is performed by an Gastroenterologist, who is a physician with special training in endoscopy/colonoscopy procedures. The colonoscope is inserted into the anus and advanced through the entire colon (to the cecum where the appendix is) and possibly a short distance into the small intestine.