This book contains Gastrointestinal System; Digestion; Digestion; Chemical digestion; Role of Stomach in Digestion; Digestion in the Intestine; Digestion in Some vertebrate. Students in biological, medical and health oriented programmes will find this as most useful and informative. The students aiming for a career as a nurse, medical assistant, physician’s assistant, medical laboratory technologist, radiologist, inhalation therapist, dental hygienist, and physical therapist, will find this book as vade-mecum.