The colon or large intestine is the last part of the digestive tract. It has an approximate length of 1.5 meters and extends from the end of the small intestine to the anus. The first portion of intestine is located in the lower right abdomen, is draining the small intestine and is called blind. From here the colon rises to reach the area of the liver (ascending colon) and passes through the abdomen (transverse colon). The colon is then directed downwards, being called the descending colon to reach an area called sigma that empties into the ...