With megacolon, the bowel becomes extremely dilated and atonic (not moving) with a large amount of stool "just sitting there." In many ways, atonic colon is an example of classical conditioning.
A bowel resection is when a section of the small or large intestine (the colon) is removed. This is a surgical procedure that’s done in a hospital. It may be used to treat a bowel blockage, Crohn’s ...
, Mayo Clinic and Mayo Foundation, Rochester, Minn. There is also overlap in the clinical symptomatology of patients with constipation-predominant IBS and those who have constipation that results ...