The Digestive Process:
The start of the process - the mouth: The digestive process begins in the mouth. Food is partly broken down by the process of chewing and by the chemical action of salivary enzymes.
On the way to the stomach: the esophagus - After being chewed and swallowed, the food enters the esophagus.

In the small intestine - After being in the stomach, food enters the duodenum, the first part of the small intestine. It then enters the jejunum and then the ileum.
In the large intestine - After passing through the small intestine, food passes into the large intestine. In the large intestine, some of the water and electrolytes

The end of the process - Solid waste is then stored in the rectum until it is excreted via the anus.

HOW IS THE ENERGY VALUE IF FOOD MEASURED.

• It is determined by the number of calories.
• 1000 Calories equals one kilocalorie and a daily in take is 2, 500 Calories.

The difference between chemical and mechanical digestion is:Chemical digestion= Process that breaks large food parts into small molecules that can be taken in by cells.Mechanical digestion= Process of breaking down food into smaller peices by chewing and smashing.

4 FUNCTIONS OF SALIVIA.

• Protection of oral cavity from microbes,
• Digestion of ingested food,
• Lubricating oral surface,
• Maintaining acid-base balence of blood.

How does the epiglottis help from prevent you from choking?
When you eat, your epiglottis covers your windpipe (trachea) and this stops food from going into your lungs.

What is the function of mucus in the stomach?
It protects stomach lining from gastric acids.

4 FACTORS THAT AFFECT DIGESTION&ABSORPTION.

• Eating habits
• Emotions
• Food allergies
• Physical activity

http://youtu.be/08VyJOEcDos