854 



INDEX. 



Vaso motor centres, 246, 595 



nerves, 246 



course of, 248 



reflexes, 246 

 Veins, 186 



development of, 802 



valves of, 187 

 Velum interpositum, 583 

 Venous flow, 224 

 Ventilation, 287 



Ventricles of heart, action of, 189 

 Ventriloquism, 551 

 Vernix caseosa, 497 

 Vertebral columns, development of, 789 



plate, 775 

 Vertebrate, 825 

 Vesico- spinal centre, 579 

 Vesiculse seminales, 753 

 Vesicular breathing, 267 

 Villi, 372 

 Visceral arches, 792 



clefts, 792 



folds, 792 

 Vision, accommodation of, 713 



binocular, 738 



field of, 730 



mechanism of accommodation, 715 



range of distinct, 716 



reversion of image, 728 

 Visual axis, 712 



Visual centre, 639 



judgments, 728 



perceptions, 728 



purple, 727 



sensations, 723 



duration of, 724 

 intensity of, 724 

 Vital capacity, 268 

 Vitellin, 120 

 Vitelline duct, 778 

 Vocal cords, movements of, 544 

 Voice, 536 



difference between male and female 

 536 



in singing and speaking, 545 

 Vomiting, 369 

 Vowels, 549 



WALKING, 524 



AVallerian degeneration, 565 



Wliarton's jelly, 46 



AVolffian bodies, 817 



XANTIIIN, 831 



base, 119 



in urine, 479 

 Xantho-proteic reaction, 113 



YAWNING, 281 

 Yolk-sac, 789 



