How does the colon works to move the stool ?

Motility: The colon is the last part of the tube we call the GI tract. The colon's primary job is absorption of water and storage of solid waste until defecation. There are circular & longitudinal muscles that contract sequentially to both mix food so it contacts the colon lining effectively (& thus promotes absorption) as well as propels food forward toward the rectum. Various stimuli control the process.