The Process of Digestion

The Process of Digestion
Fajer Al-Suwilah
American University of Middle East

     

 
Outline
                              I. Introduction:
1. Have you ever wondered how you benefit from food?
2. The significant stages of the digestion process are ingestion, digestion and absorption.
II.Body:
A. Food is ingested.
1. Food enters the mouth.
2. Food is chewed.
3. Food moves to the stomach.

B.Food is digested.
1. Food is mixed with acidic gastric juices in the mouth.
2. The liquid food moves from the stomach to the small intestine.
3. Enzymes are excreted.

C.Absorption.
1. The digested food passes through the small intestine.
2. The bloodstream absorbs the digested food.
3. Unneeded food is disposed.
III. Conclusion:
The digestive process involves three major steps which are: (1) ingestion, (2) digestion and (3) absorption.

The Process of Digestion

Have you ever wondered how you benefit from food? Well, the digestion process is important to maintain the lives of creatures and to provide them with needed energy. Particular organs contribute in this process, such as, the mouth, esophagus, stomach, and intestines. These organs work together to operate and fulfill the required purpose of this complex process. Digestion is the process of breaking down the food from large molecules into small ones to make it easier for absorption (“A Process of Digestion”, 2001). The significant stages of the digestive process are ingestion, digestion and absorption.
            The first stage of the digestion process is the ingestion, which occurs in the mouth. The important parts of the mouth are the tongue, the teeth and the salivary glands. First of all, the food enters the mouth. Then the teeth chew it. The tongue rolls the food into balls called boluses. Salvia, which is secreted by the salivary glands, plays a significant role in breaking down the food into smaller pieces. An enzyme in the saliva called amylase begins to break down the...