xviii CONTENTS. 



PAGE 



207. The bile salts ; glycocholic and taurocholic acids .... 356 

 208. The action of bile on food 357 



Pancreatic Juice. 



209. The characters of pancreatic juice 358 



210. The action of pancreatic juice on proteids ; leucin, tyrosin. Its 



action on fats and on starch 359 



Succus Entericus. 



211. Nature and action of succus entericus 363 



S 212. Gallstones . . . . 364 



SECTION IV. 

 THE SECRETION OF PANCREATIC JUICE AND OF BILE. 



213. The secretion of pancreatic juice 365 



214. The discharge of and the secretion of bile 366 



215. The vascular conditions of the liver and their relations to the 

 secretion of bile. The influence of absorbed products of 



digestion 367 



216. The pressure at which bile is secreted 369 



217. The resorption of bile 370 



SECTION V. 

 THE MUSCULAR MECHANISMS OF DIGESTION. 



218. Peristaltic movements. Mastication 371 



219. Deglutition ; its phases, nature, and nervous mechanism . . . 372 



220. The movements of the oesophagus 375 



221. The movements of the stomach 377 



222. Vomiting 378 



223. The movements of the small intestine 380 



224. The movements of the large intestine 381 



225. Defsecation 381 



226. . The nervous mechanisms of gastric and intestinal movements. The 



special movements of the rectum 383 



227. Influences bearing on peristaltic movements 386 



SECTION VI. 



THE CHANGES WHICH THE FOOD UNDERGOES IN THE ALIMENTARY CANAL. 

 228. The changes in the mouth 387 



The Changes in the Stomach. 



229. The changes in the stomach. Chyme. Absorption from the 



stomach. Flatulence . ...... 388 



