Process of Digestion

Essay specific features

 

Issue:

Science

 

Written by:

Jason D

 

Date added:

June 26, 2013

 

Level:

University

 

Grade:

A

 

No of pages / words:

2 / 337

 

Was viewed:

1469 times

 

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Essay content:

The three major steps involved in the digestive process are ingestion, digestion, and absorption. Ingestion, which occurs in the mouth, is the first step of the digestive process. After food enters the mouth, the teeth chew it. Saliva, which is produced by the salivary glands, plays a major role in breaking down the food into smaller pieces...
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These small pieces travel to the stomach through the esophagus. In the stomach, the second step of the digestive process begins. When the chewed food reaches the bottom of the esophagus, a valve lets the food enter the stomach. Contraction of the stomach wall mixes the food. Acidic gastric juices, which are secreted by the gastric glands in the stomach, help in mixing the food and in turning it into partial liquid so it will have the ability to move into the small intestine...
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