Large Intestine: Divided : into Cecum, Appendix, Colon (ascending, transverse, Descending, and Sigmoid), Rectum, and Anal Canal. Bacterial Flora ferments indigestible carbohydrates and mucin, releases irritating acids and gases, synthesise B and K vitamines, and Gut health. Digestion: there is no food breakdown (expect done by bacteria), propulses feces to anus and defecation, reabsorptio of vitamines, water, and electrolytes.