 The Olympus video colonoscope was inserted through the anus and was advanced in retrograde fashion through the sigmoid colon, descending colon, around the splenic flexure, into the transverse colon, around the hepatic flexure, down the ascending colon, into the cecum. 
The Olympus video colonoscope was inserted through the anus and was advanced in retrograde fashion through the sigmoid colon , descending colon , around the splenic flexure , into the transverse colon , around the hepatic flexure , down the ascending colon , into the cecum .