800 



A TEXTBOOK OF PHYSIOLOGY 



Urine, analyses of, 455 



bile in, 469 



blood in, 466 



colour of, 454 



composition of, 455 



formation of, rate, 429 



nitrogen total of, 455 



nitrogenous constituents of. 455 



passage of, through ureters, 482 



proteins in, 465 



secretion of, 473 



sugar in, 431, 467 



transparency of, 454 

 Uriniferous tubules, course of, 475 

 Urobilin, 454 



Urochrome, 454 



Uroerythrin, 455 



Uterus, ovum embedded in, 776 



Vagi, influence of, 296 

 Vago-sympathetic, excitation of, 170 



stimulation of, contraction of frog's 

 heart showing, 169 



Vagus, in cat, 300 



influence of, upon respiratory move- 

 ments, 296 



Vagus nerve, 691 



electrical changes in, 298 



in rabbit, dissection of, 176 



inter-auricular septum of, 124 



periphereal end of, effect of stimu- 

 lating, 241 



excitation, 173 



stimulation of, in cat's heart, 175 

 Valin, 40 



Vascular system, changes of pressure in, 



227 



Vaso-constrictor nerves, 233, 238, 242 

 Vaso-dilator nerves, 242 

 Vaso-motor centre, reflex action, 233 



mechanisms, 246 



nerves, 229 



distribution of, 231 



Vegetables, composition and value of, 350 



green, 355 

 Vegetarianism, 364 



Veins, blood-flow in, rate of, 226 



blood-pressure in, 225 i 



blood-velocity in, 225 



structure of, 125 



velocity of flow in, 208 



venous pressure of, 226 

 Velocity of blood, in veins, 225 



of blood-flow, 203 

 Venous pulse, 213 



Venous reservoir of liver, 451 

 Venous system, pressure in, 225 

 Ventilation, principles of, 312 

 Ventral spino-eerebellar tract, 669 



Ventricle, right, of calf, 121, 122 

 Veratrin curve, 543 

 Vertebrate heart, type of, 118 

 Vestibule, 647 

 Vestibulo-spinal tract, 670 

 Viscosity of blood, 80 

 Vision, binocular, 630 



near point of, 615 



paths concerned in, 712 



reaction time to, 733 



receptor mechanism of, 599 



sense of, 599 

 Visual angle, 611 



area, cell lamination of, 7'2t> 



judgments, 633 



tract, 712 

 Vital force, 15 



Vitamines, effect of, on growth, 338 



on nutrition, 337 

 - lack of, 336 



Vivator apparatus for artificial respira- 

 tion, 324 



Vocal cords, positions of, 744 

 Volatile fatty acids in fat, 55 

 Volvox globator, colony of cells, 4 

 Vomiting, 415 

 Vowels, produced by larynx, 745 



shape of mouth in sounding, 745 



Wagner's hammer, action of, 537 



Walking, 528 



Wallerian degeneration, 576 



in cat, Marchi method of staining, 



577 



Warm-blooded animals, 495 

 Water, 33 



diffusion of gas through, 20 



lack of, 334 



vapour, 498 

 Weber's law, 585 

 Weaning, 362 



Weight, at different ages, protein for, 362 



Wernicke's area, 730 



Wheel for mixing colours, 623 



Wines, alcohol percentage of, 365 



Work, diet under various conditions of, 356 



metabolism increased during, 343 

 Woulffe's bottle, 18 



Xanthin, 50 



Yawning, 296 



Yeast cells, photographed by ultraviolet 



light, 10 

 Young-Helmholtz theory of colour vision, 



625 



Zollner's lines, 636 

 Zymogen, 369 



KILLING AND SONS, LTD., PRINTERS, GUJIT>FQRD, ENGLAND 



