1.- The Digestive System - General system function

General system function:

The digestive system is a group of organs that work together to convert food into energy and basic nutrients to feed the body.

The function of the digestive system break down food and convert them into small molecules, the body will absorb energy to produce, after foods are transformed into nutrients necessary for our body.

Food passes through a long tube into the body known as the alimentary canal, is composed of the oral cavity, pharynx, esophagus, stomach, large intestine and small.


Webgraphy:

http://www.webmd.com/digestive-disorders/digestive-system 

http://www.innerbody.com/image/digeov.html#full-description