320 



INDEX. 



Saliva, character of, 46 



dental caries and, 51 



function of, 44 



neutralizing power of, 49 



reaction of, 48 



tartar formation and, 51 

 Salivary calculi, 52 

 Salivary glands, 39 



nerve supply of, 40 



nervous control of, 42 



secretion of, 39 

 Scratch reflex, 251 

 Salt hunger, 120 

 Sea sickness, 277 

 Sebaceous glands, 258 

 Secretin, gastric, 63 



pancreatic, 71 

 Secretion: 



control of, 38 



gastric, control of, 61 



milk, 238 



pancreatic, control of, 71 



salivary, control of, 42 



sebaceous, 238 

 Secretory process: 



hormone control of, 38 



nervous control of, 38 

 Semicircular canals, bony, 275 

 Semilunar ganglion, 191 

 Semilunar valves, 160, 162 

 Semipermeable membrane, 27 

 Sensory areas of cortex, 272 

 Shivering, 138 

 Shock, 193 

 Sight, 279 



Skin, function of, 236 

 Smell, 297 

 Sneezing, 214 

 Solutions, isotonic, 30 



hypertonic, 30 



hypotonic, 30 

 Sound, loudness of, 226 

 Sounds of heart, 169 

 Special senses, 279 

 Specific dynamic action of foods, 

 87 



Tartar, 52 

 Taste, 296 

 Taste-buds, 296 

 Tectorial membrane, 292 

 Teeth and fifth nerve, 262 

 Temperature of body, 134 

 1'emperature, effect of, on mus- 

 cular contraction, 135 

 Temperature sensation zero, 245 

 Temperature sense, 245 



Temperature, bodily, regulation 



of, 135 

 Tetany, 128 

 Thorax, contents of, 207 



movements of, in respiration, , 



211 



Thrombin, 148 

 Thrombogen, 148 

 Thymus, 133 

 Thyroid gland, 125 

 Tidal air, 215 

 Touch, sensations of, 244 

 Toxins, bacterial, 149 

 Toxophores, 150 

 Trigeminal nerve, 261 

 Trypsin, 74 

 Trypsinogen, 74 



Urea, 108, 230 

 Uric acid, 110, 230 

 Urinary organs, 232 

 Urinary salts, nitrogen, 108 

 Urine, ammonia, 108 



excretion of, 229 



nature of excretory process, 233 



Vagus nerve, action of, on heart, 



183 



Valves of heart, 162, 170 

 Varicose veins, 179 

 Vasoconstrictor nerves, 190 

 Vasodilator center, 187 

 Vasodilator nerves, 191 

 Vasomotor tone, 194 

 Veins, blood in, 178 

 Velocity of blood, 177 

 Ventilation, 223 

 Vision, 279 



color, 290 



stereoscopic, 290 

 Visual defects, 284 



treatment of, 285 

 Vital capacity, 216 

 Vitamines, 121 

 Vocal cords, false, 224 



relation of, to pitch, 225 

 Voice, 224 

 Vomiting, 58 

 Vowels, 227 



Water, proportion of, in body, 20 

 physiological properties of, 20 

 Wheat flour, 104 

 White blood-corpuscles, 144 



Xanthin bodies, 110 

 Yawning, 214 



