INDEX 



339 



Valves of heart, 66, 67 



of veins, 74 

 Vaso-motor centres, 76, 238 



nerves, 75-77 



Vater-Pacini corpuscles, 301 

 Ventricles of heart, 66 

 Vernix caseosa, 321 

 Villi, 103, 141 

 Visual angle, 277 



axis, 260, 277 



centre, 247 



field, 277 



perception, 276 



purple, 271 



sensations, 272 

 Vital capacity, 83 



force, I 



Vocal cords, 210 

 Voice, 209 

 Voluntary reactions, 225 



Vomiting, 128 

 Vowels, 213 



Water, 14, 42, 160, 172 



functions of, 15, 114 

 lack of, 166 



Wave of contraction, 190 

 Weber's law, 256, 272, 302 

 White blood corpuscles, 54, 89, 199 

 Wolffian bodies, 320 9 ' 



Work of muscles, 179, ifto, 192 

 unit of, J 78 



Xanthin, 104 



bases, 35, 47, 89 

 Xanthoproteic reaction, 30 



Yellow spot, 270 

 Yolk sac, 315, 319 



