1422 



INDEX 



Vagus, inspiratory fibres, 1215 

 nucleus of, 467 



proof of inspiratory fibres in, 1219 

 tonic action on heart, 1094 

 Valerianic acid, 59 

 Valine, 90 



Valve of Vieussens, 409, 418 

 Valves of heart, see Heart 

 Variation, monophasic, 257 

 Vasa afferentia, 1267 

 efferent ia, 1267 

 recta, 1267 

 Vascular area of chick, 939 



system, influence of capacity of, on 



circulation, 993 



tone, effect of central nervous 

 system on, 1103 



peripheral, 1113 



Vaso-constrictor fibres, course of, 1119 

 Vaso-dilatation, criteria of, 1116 



by metabolites, 1128 

 Vaso-dilator fibres in nerve-trunks, 



1122 



nerves, 1121 



Vaso- motor centre, action of acids on, 

 1100, 1112 



location of, 1104 

 variations in activity of, 1105 

 centres in cord, 1111 

 impulses, path of, in cord, 406 

 nerves, course of, 1114 



experimental methods 

 influence on blood-pressure 

 reflexes, 1126 



Vegetable food, utilisation of, 726 

 Vegetarian diet, 726, 734 

 Veins, blood-flow in, 1050-1052 

 capacity of, 996 

 distensibility of, 982 

 structure of, 982 

 valves in, 1051 

 Velocity of reaction, 181 



in vascular system, 991 

 Venous pressure in man, 989 



outflow, determination of, 1119 

 pulse, 1051 



in heart block, 1073 

 Ventilation, 1231 

 Ventral cerebellar tract, 401, 417 

 Ventricle of Morgttgni, 579 

 Ventricles, capacity of, 1004 



pressure in, 1009 

 Ventricular diastole, 1008, 1024 



systole, 1008 



Veratrine, action of, on muscle, 236 

 Vesicle, germinal, 1368 

 Vesicular murmur, 1169 

 Vestibular nerve, Deiters' nucleus, 429, 



454 



functions of, 449 

 median nucleus of, 429 

 nucleus of, 428, 466 

 Vestibule, 573, 675 

 Vestibulo-cerebellar fibres, 417, 438 

 Vestibulo-spinal tract, 399, 440 

 Vibrative consonants, 586 

 Vicq d'Azi/r's bundle, 437, 477 



Villus, changes in, during protein ab- 

 sorption, 840 

 Villus, structure of, 827 

 Viscera, afferent fibres of, 531 



innervation of, 528 



sensibility of, 551 

 Visceral nervous system, 520-532 

 Vision, 587-668 



direct, 627 



indirect, 627 



single, 656 

 Visual adaptation, 639 



angle, 593, 659 



axis, 625 



centre, 504 



fatigue, 639 



judgments, 658-663 



localisation, 659 



path, 436, 459, 504 



purple, 623, 629 



reflexes, 459-462 



sensation, Weber's law, 637 



sensations, 634-652 



stimuli, time relations, 637 

 Visuo-psychic area, lamination, 487 

 Visuo-sensory area, lamination, 487 

 Vital capacity, 1170 

 Vitalism, 9 

 Vitellins, 111 

 Vitreous humour, 592 

 Vocal cords, 579 

 Voice, 578-586 



in singing, 583 



pitch of, 584 



production of, 581 



range of, 582 

 Volatile fatty acids, 61 

 Volhard's method for chlorides, 1262 

 Voluntary contraction, 266 



electrical changes in, 269 

 record, 268 



muscle, 197 

 Vowel sounds, 584 



percussion method, 585 



WALLERIAN degeneration, 397 



method, 361 



Wagner's hammer, 211, 212, 213 

 Wandering phagocytes, 922 

 Warm points, 543 

 Water, absorption of, 826 



estimation in food, 686 



necessity for, 7 



and dissolved substances, passage 

 across membi'anes, 145-153 



rigor, ?59, 1064 



vacuole, 15 

 Weber's law, 539, 548 



in vision, 637 

 Wernicke's aphasia, 512 

 Wpi/l's test, 1247 

 Wheatstone bridge, 248 

 White rami, 522 



sensation of, ('43 

 Whispering, 584 

 Word-blindness, 514 

 Work, relation to stimulus, 28 



