Large intestine???

Between the ileum and the colon, there is something called the caecum.The digested food goes past here and proceeds to the colon.In the colon,the mixture of fibre, water, and vitamins,mixes with mucus and with bacteria which live in the large intestine,the bacteria in the colon will chemically break down the fibre producing nutrients for themselves and also to promote growth for the cells on the walls of the large intestine.The walls of the intestine absorbs most of the water,vitamins and minerals salts. Faeces is the mixture of the dead bacteria and undigested food piled together ready to be passed out.
Faeces is pushed along the intestine until finally,the faeces move into the rectum.
the undigested food will come out of the system, this process is called egestion or defaecation.