The large intestines connect with the small intestines in the lower right part of the abdomen. They then extend up the right side of the abdomen to an area beneath the liver, cross the abdomen to the left side high up near the diaphragm, and, finally, extend down the left side of the abdomen all the way to the rectum and anus. The various parts of the large intestines are called:
- The Cecum connecting with the small intestines in the right lower abdomen;
- The Ascending Colon extending up the right side of the abdomen;
- The Transverse Colon extending down the left side of the abdomen;
- The Sigmoid Colon an S-shaped portion located in the lower left side of the abdomen;
- The Rectum the last part of the large intestines, way down in the lower portion of the abdomen;
- The Anus the outlet of the large intestines through which we have the body and were straightened out, we’d discover that they are about five or six feet long, or about as long as the couch in most people’s living room.
The purpose of the large intestines is to absorb water from the stools and to push the stools onward so they can be excreted through the anus. By the time the large intestines receive the foods we have eaten, all the nourishment contained in the foods has been removed in the small intestines. Therefore, the stools consist mostly of waste materials that the body neither needs nor wants.