Wanna come on a journey through the human digestive system? Join me, Pizza, and I'll tell you everything you need to know about the human digestive system. First, we enter through the mouth. The teeth will tear and grind up the food. The tongue will move the food around then the saliva start to chemically digest the food turning it into a watery mixture that can easily pass into the stomach. Then the food goes down the throat, which is a tube, connecting the mouth to the esophagus, which links also to the stomach. The food is carried along the esophagus by muscular contractio
All papers and essays are for research and reference purposes only!
Copyright 2002-2009
Direct Essays , LLC. All Rights Reserved. DMCA Webmasters make $$$$