Large Intestine- responsible for absorbing water, electrolytes, and forms and stores feces; it opens to the outside of the body as the anus; it has 4 parts to it, the cecum is a pouch at the beginning of the large intestine with the appendix projecting outward, the colon consists of the ascending, transverse, sigmoid regions, the rectum is a straight section of the large intestine which lies next to the sacrum, the anal canal opens to the outside of the body, it is protected by an involuntary internal anal sphincter and a voluntary external anal sphincter