Colorectal Diagram. The anal sphincter and pelvic floor muscles also relax. The stomach churns up the food and then passes it into the small intestine.
It receives digested food from the small intestine from which it absorbs water and electrolytes to form faeces. The anal sphincter and pelvic floor muscles also relax. The large intestine begins at the cecum.
These diagrams show the parts of the colon that are removed during these operations.
Sometimes it is called colon cancer for short. In 2016 only 403 of all colorectal cancers were diagnosed at an early stage. As the drawing shows the colon is the large intestine or large bowel. The bowel is part of the digestive system.