CONTENTS. Xlll 



PAGE 



Nervous Mechanism of Secretion of Saliva, 139 



Changes in the Gland Cells, 146 



/Functions O f the Saliva, 148 



CHAPTER VIII. 



THE STOMACH DIGESTION. 



The Gastric Glands, 152 



Characters of Gastric Juice, 154 



Mode of Secretion of Gastric Juice, 156 



/ Action of the Gastric Juice, 158 



CHAPTER IX. 



PANCREATIC JUICE. 



Structure of the Pancreas, 164 



/Characters and Mode of Secretion of Pancreatic Juice, 165 



Changes in the Gland Cells, 167 



/Action of Pancreatic Juice on Proteidcj, 169 



/Action on Fat, 170 



.Action on Starch, 170 



CHAPTER X. 



BILE. 



/Functions of the Liver, 171 



Structure of the Liver, 172 



Composition and Method of Obtaining Bile, 177 



Method of Secretion of Bile, 181 



^ Functions of the Bile, 183 



CHAPTER XI. 



FUNCTIONS OF THE INTESTINAL Mucous MEMBRANE. 



Structure of the Small Intestines, 185 



Method of Obtaining Intestinal Secretion, 187 



^s Characters and Functions of the Intestinal Juice, 188 



Functions of the Large Intestine, 190 



S Putrefactive Fermentations in the Intestine, 191 



