Colonoscopy Anatomy

Ascending colon 20 25 cm long located behind the peritoneum. The anatomy of the colon starts after the cecum and ends before the rectum.

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It is a hollow muscular tube which carries out a number of digestive functions.

Colonoscopy anatomy. Appendix a vermiform wormlike diverticulum located in the lower cecum. The sigmoid colon the s shaped region of the large intestine. The section known as the ascending colon starts at the cecum and extends upward on the right side of the abdomen to just underneath the liver.

The transverse colon including the colic flexures and transverse mesocolon. Overall colon anatomy has four main sections. The colon removes water salt and some nutrients forming stool.

Parts of colon and rectum cecum proximal right colon 6 x 9 cm pouch covered with peritoneum. Sections of the colon are. The colon extends from the cecum an enlarged area at the end of the small intestine up the right side of the abdomen ascending colon across to the left side transverse colon and down the left side descending colon and then loops at the sigmoid flexure or sigmoid colon to join the rectum.

The ascending colon including the cecum and appendix. Hepatic flexure lies under right lobe of liver. Muscles line the colons walls squeezing its contents along.

The purpose of the colon is to lubricate waste products absorb remaining fluids and salts and store waste products until they are ready to be passed from the body. An appreciation of normal colonic anatomy and three dimensional spatial awareness of the estimated position of the colonoscope by the colonoscopist is important.

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