This application contain following topics
>>1.Introduction to Digestive System
>>2.Mouth and Salivary Glands
>>3.Stomach
>>4.Pancreas
>>5.Liver and Gallbladder
>>6.Small Intestine
>>7.Large Intestine
>>8.Movements of Gastrointestinal Tract
>>9.Gastrointestinal Hormones
>>10.Digestion, Absorption and Metabolism of Carbohydrates
>>11.Digestion, Absorption and Metabolism of Proteins
>>12.Digestion, Absorption and Metabolism of Lipids
Optimize size and removed some issues
9Apps 4.9
