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Functions of Different Parts of Human Digestive System

Digestive system is a system of organs and glands which are involved in obtaining food, its crushing, digestion, absorption, assimilation and egestion of indigestible matter. 

The digestive system of a mammal consists of alimentary canal (digestive tract) and associated glands. The alimentary is long tube of 8-10 meters in length. It includes the following structures: Mouth and buccal cavity, Oesophagus, stomach, small intestine, and large intestine. Associated glands are those glands which secrete digestive juices for the digestion of food. Associated glands are salivary glands, gastric glands, liver, pancreas, and intestinal glands.
Human digestive system
Parts
Functions
Buccal cavity
Ingestion, Mastication
Pharynx
Swallowing
Oesophagus
Links pharynx to stomach
Stomach
Food Storage and digestion of proteins
Duodenum
Digestion and absorption
Ileum
Completion of digestion and absorption of food
Colon
Absorption of water
Rectum
Formation and storage of faeces
Anus
Egestion
Salivary glands
Lubrication of food, partial digestion food.
Gastric glands
Gastric juice are secreted by gastric glands
Liver
Emulsification of fats
Pancreas
Digestion of starch, proteins and fats


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