INDEX 



269 



Vasodilator nerves, 115 

 Vasomptor centre, 116 

 spinal, 116 

 sympathetic, 117 



nerves, 116 



reflexes, origin of, 118 



system, 115 



Vein, entrance of air into, 112 

 Venae Thebesii, 109 

 Venous pulse, 98 

 Ventilation, 127 



Ventricular systole, duration of, 97 

 Ventriloquism, 239 

 Vermis, 200 

 Vernix caseosa, 40 

 Vestibular nerve, 210 



root of auditory nerve, 207 

 Vision area, 216 



binocular, 237 



clearness of, 237 

 Visual purple, 233 

 Vital capacity of lungs, 117 

 Vitreous humor, 222 

 Vocal cords, 175 

 Voice, 174 



nervous mechanism of, 175 



register of, 175 



Voluntary reaction, afferent paths 



of, 200 

 Vomiting, 168 



W 



WALKING, 174 

 Wandering cells, 82 

 Water, 54 



elimination of, 161 

 Weber's law, 242 

 Whispering, 175 

 Work, 189 



XANTHIN, 143 



YAWNING, 136 



Young-Helmholtz theory of color 

 vision, 236 



ZYMOGEN granules, 57 



