INDEX. 



1041 



Sphincter of bladder, 858 

 Sphygmography, 523 

 Sphygmomanometers for determining 



blood-pressure in man, 500 

 Spinal cord as path of conduction, 162 

 classification of tracts in, 165 

 effect of removing, 153 

 general relations of gray and 



white matter in, 164 

 groups of cells in, 162 

 Helweg's bundle in, 181 

 homolateral and contralateral 



conduction in, 176 

 less well-known tracts of, 180 

 Monakow's bundle in, 180 

 paths in, for cutaneous impulses, 



174 



pyramidal tracts of, 180 

 reflex activities of, 140 

 tonic activity of, 152 

 tracts of, in lateral funiculi, 172 

 in posterior funiculi, 169 

 in white matter, 165 

 vestibulospinal tract, 181, 235 

 reflex movements, 142 

 reflexes, 142 



in mammals, 145 

 respiratory center, 686 

 Spirometer, 653 

 Spleen, physiology of, 830 

 Stannius, first ligature of, 578 

 Stapedius muscle, function of, 390 

 Starvation, effect of, on body-metab- 

 olism, 934 



Steapsin. See Lipase. 

 Stenson's duct, 752 

 Stereognostic perception, 204 

 Stereoscopic vision, 378 

 Stethoscope, 552 

 Stifel's figure, 336 

 Stimulants, 741 



nutritive importance of, 925 

 Stimuli, artificial, of muscle, 24 



of nerve, 84 



Stokes- Adams syndrome, 578 

 Stokes' reducing agent, 434 

 Stomach, absorption in, 785 

 anatomy of, 719 

 automaticity of, 724 

 digestion in, 784 

 glands of, 768 

 histolpgical changes in, during 



activity, 769 



means of obtaining secretion of. 770 

 mechanism of gastric secretion, 775 

 movements of, 720 

 musculature of, 720 

 properties of pepsin of, 778 

 secretory nerves of, 774 

 Storage proteins, 896 

 Strabismus, 370 

 String galvanometer, 99 

 66 



Stromuhr, 483 

 Subliminal stimulus, 346 

 Submaxillary ganglion, 752 

 Substrata, 746 

 Succus entericus, 798 

 Sugar puncture, 909 



regulation of supply of, in body, 



909 



Sugars. See Carbohydrates. 

 Sulphur, forms in which excreted, 855 

 Summation of muscular contractions, 



42 



of stimuli in nerve-centers, 138 

 Superior olivary body, relation of, to 



auditory paths, 215 

 Supplemental air, 654 

 Surface area law, 953 

 Swallowing, 713 



respiration, 715 

 Sweat, amount and composition of, 



861 



nerve-centers for, 864 

 nerves, action of, in heat regula- 

 tion, 954 



secretory fibers of, 862 

 Sympathetic nervous system, general 



relations, 251 

 resonance, 398 

 Syntonin, 781 



Systole, duration of, in heart, 557 

 Systolic arterial pressure, 493 



determination of, in animals, 



495 



in man, 500 



plateau of ventricular contraction, 

 548 



TABES dorsalis, 171 



Tactile discrimination, 175, 286 



localization, 286 

 Taste buds, 296 



center for, in brain, 218 

 nerves of, 294 



sensations, classification of, 296 

 specific energy of, 297 

 threshold stimulus, 299 

 sense of, 294 



stimuli, mode of action, 298 

 Tectorial membrane, 400 

 Temperature. See Heat. 

 coefficient, 115 



effect of, on body metabolism, 933 

 on gases in solution, 673 

 on heart-rate, 600 

 on muscular contraction, 29 

 of human body, 946 

 sense, distribution and character- 

 istics, 280, 282 

 path for, in spinal cord, 174 

 punctiform distribution of, 280 

 Tension of gases in solution, 674 



