1270 INDEX 



Trypsin, 703 



action on polypeptides, 704 

 on proteins, 703 



velocity of action, 166, 705 

 Trypsinogen, 703 

 Tryptophane, 85, 91, 94 



fate of, 772 



Tuber cinereum, 363, 375 

 Tympanic membrane, 512 



movements of, 513 

 Tympanum, 512 

 Tyrosinase, 1108 

 Tyrosine, 50, 84, 91 



in urine, 1125 



Uffelmann's reagent, 215 

 Ultra-microscope, 145 

 Umbilical cord, 1232 

 Uncinate fasciculus, 426 

 Uncus, 419 



Unipolar excitation, 269 

 law of, 269 

 Unstriated muscle, 243 



propagation of wave in, 246 

 Uracil, 104, 776 

 Urate deposit, 1124 

 Urates, 1118 

 Urea, 1115 



estimation, 1126 



Foliris method, 1127 

 hypobromite method, 1126 

 fermentation of, 1115 

 origin of, 759 

 output in starvation, 630 



on protein diet, 758 

 preparation from urine, 1117 

 Ureter, contractions of, 1152 

 Uric acid, 103, 1117 

 crystals, 1125 

 daily amount, 1119 

 endogenous, 780 

 estimation, 1128 

 excretion, 779 

 in gout, 781 

 origin of, 777 

 preparation, 1117 

 production in birds, 760 

 structure of, 775 

 synthesis, 103 

 tests, 1118 



Uricolytic ferment, 779 

 Urinary constituents, estimation of, 1126- 



1130 



deposits, 1124 



Urine, abnormal constituents in, 1121-1125 

 acetone in, 1123 

 ammonia in, 1115 

 average composition, 1112 

 bases of, 1114 

 chlorides of, 1112 

 composition of, 1110-1130, 1142 



on various diets, 780 

 conditions of glomerular filtration, 1138 

 freezing-point, 1111 

 inorganic constituents of, 1112 

 lactose in, 1123 

 neutral sulphur in, 1113 

 organic constituents of, 1115 

 oxy acids in, 1123 

 phosphates of, 1113 



Urine, pigments of, 1120 



pressure of, in ureter, 1 1 37 



reaction of, 1111 



secretion of, 1131-1151 

 in glomerulus, 1135 

 influence of colloids, 1137 



kidney volume, 1139 



specific gravity of, 1111 



sugar in, 1122 



sulphates of, 1113 

 Uriniferous tubule, course of, 1131 



tubule, functions of, 1134 

 Urobilin, 1121 

 Urochrome, 1120 

 Uroerythrin, 1121 

 Urorosein, 1121 

 Urotropine, 1127 

 Uterus, changes in, during pregnancy, 1230 



nerve-supply, 1228 

 Utricle, 515 



primordial, 14, 127 

 Uvea, 561 



VACTJOLE, contractile, 15 

 Vago-glossopharyngeal nucleus, 379, 414 

 Vagus, 473 



action on auricles, 972 

 on heart, 971 

 on intestines, 729 

 on oesophagus, 682 

 on respiration, 1089 

 on stomach, 701 



distribution in abdomen, 700 



nucleus of, 414 



proof of inspiratory fibres in, 1092 



tonic action on heart, 975 

 Valerianic acid, 54 

 Valine, 81 



Valve of Vieussens, 362, 371 

 Valves of heart, see Heart 

 Variation, monophasic, 230 

 Vasa afferentia, 1133 



efferentia, 1133 



recta, 1133 

 Vascular area of chick, 831 



system, influence of capacity of, on 

 circulation, 880 



tone, effect of central nervous system 

 on, 982 



peripheral, 990 



Vaso -constrictor fibres, course of, 994 

 Vaso-dilatation, criteria of, 991 

 Vaso-dilatation by jnetabolites, 1002 

 Vaso-dilator fibres in nerve-trunks, 997 



nerves, 996 



Vaso-motor centre, action of acids on, 989 

 location of, 983 

 variations in activity of, 983 



centres in cord, 989 



impulses, path of, in cord, 360 



nerves, course of, 990 



reflexes, 1000 " 



Vegetable food, utilisation of, 649 

 Veins, blood-flow in, 932-934 



capacity of, 883 



distensibility of, 871 



structure of, 870 



valves in, 933 

 Velocity of reaction, 162, 163 



in vascular system, 879 

 Venous pressure in man, 877 



