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Diversity In Animal Digestive Systems Essay

716 words - 3 pages

Objectives
The purpose of this report is to make a description of the digestive tracts of pigs and sheep and also to explain briefly the process of digestion on ruminant and non-ruminant organisms. Furthermore there will be an analysis of the results that have been observed on the dissection practical. The report will be finalizing with a comparison between the digestive tract of pig and sheep.
Introduction
Digestion is the process that the food brake down into smaller components in order to be absorbed easier from an organism. During the process of digestion food passes several stages. The process of digestion include: the brake down of food in smaller components, the absorption of ...view middle of the document...

The small intestine has the shape of a complex, spiral tube and because of its shape has the ability to fit in limited space. The small intestine is divided on three parts: the duodenum, jejunum and ileum. At the first part of the small intestine are added secretions from the liver and the pancreas. Secretions from the liver which stored in the gall bladder pass from the bile duct into the intestine (bile secretions help on fats digestion). Also digestive juices that produced in the pancreas pass from the pancreatic duct into the small intestine. Those juices contain enzymes which are necessary for the digestion of fats, proteins and carbohydrates. The second and the third part of the small intestine are the places that most of the nutrients absorption is taking place. Undigested food passed from the ileocecal valve in the the large intestine. The large intestine or hindgut is the last stage of the digestion process. The main function of the large intestine is the absorption of water from the chyme that passes from the small intestine into large intestine. Also synthesize of B-vitamins occur and are absorbed but in limited...

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