The human body needs fuel to live. Food that we eat is the fuel but without the proper processing of the fuel, it is of no good. The food must be broken down into chemicals that the body can use. This whole process is called digestion.
The Digestive System comprises of the various organs like the mouth, esophagus, stomach, small and large intestines, gallbladder, pancreas and liver.
The stomach is a large, sack-like organ that churns the food and bathes it in a very strong acid. After being in the stomach, food enters the small intestine. After passing through the small intestine, food passes into the large intestine. In the large intestine, some of the water and electrolytes (chemicals like sodium) are removed from the food. Many microbes (bacteria like Bacteroides, Lactobacillus acidophilus, Escherichia coli, and Klebsiella) in the large intestine help in the digestion process.
The whole process of the Digestive System ends with the solid waste being stored in the rectum until it is excreted via the anus.
