722 



INDEX 



Urea, 380 



amount in tissues of body, 381 



antecedents of, 412 



determination of, 402 



formation of, 381, 411 



preparation of, 401 



properties of, 380 



quantity excreted, 382 

 Ureters, 377 

 Uric acid, 382, 402 



condition of, in urine, 382 



formation of, 413 



properties of, 382 



tests for, 402 

 Urinary bladder, 377 

 Urine, 377 



abnormal constituents of, 403 



albumin in, 385, 403 



ammonia in, 383 



analysis of, 399 



average daily quantity of con- 

 stituents, 379 



chlorides in, 385, 400 



creatinin in, 383, 402 



cystin in, 385 



dextrose in, 385, 403, 404 



discharge of, 390 



diuretics, action of, 389 



excretion by, 407 



of, experiments on, 386 



factors affecting secretion of, 386 



nitration theory of secretion, 386 



general properties of, 377 



hippuric acid in, 383, 413 



method of excretion of, 386 



mucus in, 384 



nitrogenous substances in, 380 



occasional constituents of, 385 



oxalic acid in, 385 



phosphates in, 384, 401 



pigments in, 383, 402 

 quantity of , 377, 399 



reaction of, 378, 399 



relation of blood pressure to secre- 

 tion of, 398 



saline matter in, 384 



secretion of, theories of, 386 



solids of, 400 



specific gravity of, 379, 399 



sugar in, 403, 404 



sulphates in, 384, 400 



Urine, urea in, 380, 401 



uric acid in, 382, 402 



variations in quantity of con- 

 stituents, 379 

 in specific gravity, 379 

 Uriniferous tubules, 372 

 Urobilin, 90, 342, 383, 402 

 Urochrome, 90, 383 

 Uroerythrin, 90, 384 

 Uromelanin, 384 

 Uterus, 686 

 Utriculus, 6 1 8, 629 



VAGINA, 687 

 Vagus nerve, 558 



effects of section, 560 



functions of, 560 



relation to deglutition, 315 

 to gastric secretion, 321 

 to heart's action, 179 

 to respiration, 273, 289 

 Valves of heart, 148 



action of, 156 



of veins, 154 

 Vas deferens, 680 

 Vasoconstrictor ac.tivity, 219 



center, 214 



nerves, 213, 219, 226 



reflexes, 215 

 Vasodilator activity, 219 



center, 218 



nerves, 217, 219 



reflexes, 218 

 Vasomotor centers, 543 



changes, 241 



nerves, 211, 220 



tone, 214 

 Veins, 152 



blood pressure in, 195 

 . . structure of, 152 



valves of, 154 



vasoconstrictor nerves in, 226 

 Venous flow, 202 



velocity of, 203 

 Ventilation, 279 



Ventricles of heart, action of, 155 

 Vesico-spinal center, 526 

 Vesiculae seminales, 680 

 Vesicular breathing, 259- 

 Vicq d'Azyr,* bundle of, 547 

 Villi, 361 



