Vlll CONTENTS. 



PASSAGE OF FOOD, ETC. Continued. 



PAGE 



The Salivary Glands and the Saliva . 226 



Structure of the Salivary Glands ' . 226 



The Saliva 229 



Influence of the Nervous System on the Secretion of Saliva . . . 231 



The Pharnyx 236 



The Tonsils 236 



The (Esophagus or Gullet .. . . 236 



Swallowing or Deglutition . . . . -, . . . . . . 238 



DIGESTION OP FOOD IN THE STOMACH . . . . . . . . 240 



Structure of the Stomach . . .241 



Gastric Glands ... . . 242 



The Gastric Juice . . . . 245 



Functions of the Gastric Juice 247 



Movements of the Stomach .......... 249 



Vomiting ............. 251 



Influence of the Nervous System on Gastric Digestion .... 252 



Digestion of the Stomach after Death 253 



DIGESTION IN THE INTESTINES .......... 254 



Structure of the Small Intestine . . .254 



Valvulse Conniventes 255 



Glands of the Small Intestine 257 



TheVilli 259 



Structure of the Large Intestine 263 



The Pancreas and its Secretion 264 



Structure of the Liver ; ... 268 



Functions of the Liver 273 



The Bile 273 



The Liver as a Blood-elaborating Organ 280 



Glycogenic Function of the Liver ........ 280 



Summary of the Changes which take place in the Food during its Passage 



through the Small Intestine 284 



Succus Entericus 283 



Summary of the Process of Digestion in the Large Intestine . . . 286 



Defsecation 288 



Gases contained in the Stomach and Intestines . 288 



Movements of the Intestines ......... 289 



Influence of the Nervous System on Intestinal Digestion .... 290 



CHAPTEE IX. 



ABSORPTION 291 



The Lacteal and Lymphatic Vessels and Glands 291 



Lymphatic Glands 297 



Properties of Lymph and Chyle 301 



Absorption by the Lacteal Vessels . . 303 



Absorption by the Lymphatic Vessels 303 



Absorption by Blood-vessels . . . . ..... 305 



