The anal sphincters, along with the pelvic muscles that surround the end of the digestive tract, ensure controlled movement of digestive tract contents. There are many possible causes of fecal incontinence; in most cases, incontinence results from some combination of these causes. Critical to normal bowel function are:
Oilcloth is a tightly woven fabric, usually cotton or linen, which is then treated on one side to give it a waterproof finish. The coating traditionally was linseed oil, but is now more commercially sold with a PVC coating.
The bark is beaten into a paper-like fabric, then dyed or otherwise colored. Tapa cloth is one of the best known types of true barkcloth. Barkcloth is a term that also refers to a fabric, often cotton or rayon, with a somewhat crepe-like feel that is designed to resemble true barkcloth. This fabric is used extensively for draperies, slipcovers, and other home furnishings.