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.
Links pharynx to stomach
Food Storage and digestion of proteins
Digestion and absorption
Completion of digestion and absorption of food
Absorption of water
Formation and storage of faeces
Lubrication of food, partial digestion food.
Gastric juice are secreted by gastric glands
Emulsification of fats
Digestion of starch, proteins and fats