The document summarizes several medical procedures related to the digestive system. It begins with an overview of the digestive system and its organs. It then discusses potential digestive complications and four procedures to resolve them: colonoscopy to examine and remove polyps from the colon; hernioplasty to surgically repair hernias; choledocholithotripsy to crush gallstones in the bile duct; and anastomosis to reconnect organs or vessels, such as sections of intestine.