INDEX 



463 



Twelfth nerve, 171 

 Tympanic cavity, 140 

 Typhoid toxin, 412 

 Tyrosin, 8, 361, 365 



UMBILICAL arteries, 439 



veins, 438 



Unilateral stimulation, 15, 16 

 Urates, 417 

 Urea, 329, 390, 392, 415 



of blood, 216 



effect of drugs on formation of, 391 



source of, 391 

 Urethra, 427 



Uric acid, 207, 417, 426, 447 

 Urinary bladder, 427 

 nerves of, 427 

 Urine, 414 et seq. 



excretion of, 427 



method of estimating solids in, 

 414 



micro-organisms in, 415 



non-urea nitrogen in, 416 



of herbivora, 415 



pigments of, 421 



secretion of, 423 

 Urobilin, 421 

 Urochrome, 421 

 Uroerythrin, 422 

 Uterus, 437 



centre for contractions of, 441 

 Utricle, 142 



VAO DOLES, 13 

 Vagus, 155, 172 



cardiac branches, 254 et seq. 



frog's, 253 



gastric branches, 281 



effect on respiration of section, 



307 et seq. 



effect on respiration of stimulation, 



308 et seq. 



Valsalva, sinus of, 233 

 Valve, ileo-csecal, 341 

 Valves of the heart, 231 et seq. 



action of, 242 



aortic, 233 



auriculo-ventricular, 231 (see 

 Mitral and Tricuspid) 



mitral, 231 



pulmonary, 234 



semilunar, 232 (see Aortic and 



Pulmonary) 

 Vas deferens, 433 



deferens, ligature of, 432 

 Vasa efferentia, 433 

 Vaso- constrictor centre, 282 



centres, secondary, 283 



Vaso-constrictor nerves, 280 

 Vaso-dilator centre, 283 



nerves, 280 

 Vaso-motor centre (see Centre) 



mechanism, 278 



nerves, 278 



nerves, section of, 278 

 Vegetables, as food, 335 

 Veins, pressure in, 240, 26], 286 



umbilical (see Umbilical) 

 Vena cava, inferior (foetal), 439 



superior (foetal), 439 

 Venous pulse, 270 



pulse, normal, 271 

 Ventricles of the heart, 227 



contraction of, 230 



left, 228 



muscular structure of, 228 



pressure in, 240 



right, 230 



Veratrin, effect on muscular contrac- 

 tion, 54 



Vermiform appendix, 341 

 Vernon on erepsin in the tissues, 366 

 Vesicular sound, 304 

 Vestibule of the ear, 141 

 Vestibular root of the eighth nerve, 



144, 175 



Vibrations, light, 131 

 Vieussens, annulus of, 256 

 Villi, chorionic, 437 



of intestine, 340 

 Vision, 116 et seq. 



binocular, 134 



far point of, 124 



field of, 129 



monocular, 122 et seq. 



near point of, 124 



theories of colour, 133 

 Visual centre, 137, 193 

 Vital action of eudothelium of capil- 

 laries, 318 



Vital capacity of the thorax, 303 

 Vitreous humour, 120 

 Vocal cords (false and true). 323 

 Voice, 323 et seq. 

 Volition, 199 

 Voluntary actions, 98 



centres, 199 

 Vomiting, 358 



in horse, 359 



centre, 358 



WALK, 100 



Wallerian degeneration method, 165 



Waste, rate of (during fasting), 393 



Water in food-stuffs, 326 



Weigert's method of nerve-staining, 



85, 165 

 Whey-albumin, 333, 351 



