Function of the Digestive System

Function of the Digestive System - Function of the...

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Function of the Digestive System The function of the digestive system is digestion and absorption. Digestion is the breakdown of food  into small molecules, which are then absorbed into the body. The digestive system is divided into two  major parts:  The digestive tract (alimentary canal) is a continuous tube with two openings: the mouth  and the anus. It includes the mouth, pharynx, esophagus, stomach, small intestine, and  large intestine. Food passing through the internal cavity, or lumen, of the digestive tract  does not technically enter the body until it is absorbed through the walls of the digestive  tract and passes into blood or lymphatic vessels. Accessory organs include the teeth and tongue, salivary glands, liver, gallbladder,  and pancreas. The treatment of food in the digestive system involves the following seven processes:  1. Ingestion  is the process of eating. 
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This note was uploaded on 11/10/2011 for the course PT 101 taught by Professor Staff during the Spring '10 term at Texas State.

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