Gastrointestinal tract

The musculomembranous tube that extends from the mouth to the anus in which the movement of muscles and release of hormones and enzymes digests food. The gastrointestinal tract starts with the mouth and proceeds to the esophagus, stomach, duodenum, small intestine, large intestine (colon), rectum and the anus. Also referred to as the alimentary canal, digestive tract and the GI tract.