Veins (Continued). 

 170,208; pulmonary, 199, 212; 

 renal, 261 



Vegetable casein, 117 



Venae cavse (hollow veins), 199, 

 212 



Venous blood, 178, 211 



Ventilation. 253; methods of, 256 



Ventral (haemal) cavity, 6; con- 

 tents of, 8, 13 



Ventricles, 197 



Ventricular contraction, 218 



Vermiform appendix, 148 



Vertebrae, 30, 51; structure of, 30 



Vertebral column, (spine, back- 

 bone), 7, 26, 30. 34, curvatures 

 of, 33; mechanism of, 33; pecu- 

 liarities of human, 44 



"Vertebrate animals, characteris- 

 tics of, 7; classification of, 11 

 (foot-note) 



Vestibule of ear, 331 



Villi of small intestine, 146, 170 



Visual apparatus, 317 



Visual centre, 317 



Visual purple, 323 



Vitreous humor, 325 



Vocal cords, 338 



Voice, 335; range of human, 340 

 Voluntary muscles, 75 (see also 



foot-note) 

 Vomer, 37 

 Vowels, 340 



WALKING, 87 



Warm baths, 277 



Wastes of the body, 105; removal 

 of, 175 



Water, as a constituent of the 

 body, 20; as a food, 113, 118; 

 as a force regulator, 115; as a 

 waste product, 105; quantity 

 of lost through the kidneys, 

 266; through the lungs, 251; 

 through the skin, 273 



Wheat, nutritive valve of, 120 



Whipped (defibrinated) blood, 

 181 



White blood corpuscles. 179, 190 



White nerve fibres, 295 



Windpipe (see Trachea) 



Wisdom teeth, 135 



Work, daily, of heart, 221; in- 

 fluence of starvation upon 

 muscular, 97; power of the 

 body to do, 93 



