INDEX OF SUBJECTS. 343 



(ESOPHAGOTOMY, 191 



(ESOPHAGUS, mucous glands of, 65 



OLIVE-OIL, digestion of, 239 



OPTIMUM TEMPERATURE, 88 



ORNITHIN, from arginin, 158 



OSMOTIC CELL, 262 



OSMOTIC PRESSURE, 258; of non-electrolytes, 259; of electrolytes 



260; and semipermeable membranes, 259; laws of, 259, 260; 



and migration of water, 264; behavior of cells toward 



changes in, 265, 266 

 OXIDASES, 82 



PANCREAS, amylase of, 91; regulation of secretion of, 215 j 

 fistulse of, 215, 216; normal excitants of, 224; adaptation 

 of food to, 234; role of, in fat absorption, 296, 297, 298- 

 importance of, in protein absorption, 302, 303, 304; re- 

 moval of, 303 



PANCREATIC DUCT, occlusion of, 303 



PANCREATIC JUICE, 68 ; physical properties of, 69 ; ferments of, 

 69; human, 69, 70; adaptation of, to food, 234 (see also 

 Pancreas and Pancreatic secretion) 



PANCREATIC SECRETIN, 227 



PANCREATIC SECRETION, effect of diet on, 216; quantitative 

 variations in, 217; qualitative variations in, 217; and milk, 

 217; and bread, 220; and meat, 220; effect of vagus on, 

 222 ; effect of sympathetic on, 223 ; inhibition of, 222 ; psy- 

 chic excitation of, 225 ; normal excitants of, 224 ; effects of 

 acids on, 224; effects of salts on, 225; effect of fat on, 225; 

 effect of water on, 226 ; significance of physiology of, 230 



PARALYTIC SECRETION, of saliva, 182; of small intestine, 244 



PAROTID GLAND, 176, 177; amount of secretion from, 179 



PEPSIN (see Acid-proteinase) 



PEPTIDES, 124; synthesis of,* 141; chemical reactions of, 142; 

 digestion of, by pancreatic juice, 142 



PEPTONES, 124; analysis of, 128, 147; and intestinal mucosa | 

 147; and gastric secretion, 211; effect of, on blood pres- 

 sure, 304 



PERMEABILITY of gastro-intestinal tract in one direction, 279, 

 280 



