The colon and rectum
(large bowel)
The bowel is divided
into two parts, the small and large bowel. Most cancers
develop in the large bowel, which is also known as the
colon and rectum.
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Once food has been
swallowed it passes down the gullet (oesophagus) to the
stomach and into the small bowel. As food passes through the
small bowel it is digested and essential nutrients are taken
into the body. The digested food then enters the large bowel
and water is absorbed. The remaining waste matter, known as
stools or faeces, is held in the rectum (back passage) until
it is ready to be passed from the body as a bowel motion.