The Colon and the Rectum are the two important parts of the Gastrointestinal System (GI) of the human body.
The gastrointestinal system of the human body, includes the mouth, throat, esophagus, stomach, small intestine, large intestine, rectum, anus, salivary glands, liver, gallbladder, and pancreas. These organs produce some enzymes to help the body digest food.
The Colon and Rectum are parts of the large intestine.