INDEX. 



903 



Spinal cord, effect of removing, 144, 



651 

 general relations of gray and 



white matter in, 156 

 groups of cells in, 154 

 Helweg's bundle in, 170 

 homolateral and contralateral 



conduction in, 166 

 less well-known tracts of, 169 

 Monakow's bundle in, 169 

 paths in, for cutaneous im- 

 pulses, 165 



pyramidal tracts of, 167 

 reflex activities of, 133, 144 

 tonic activity of, 144 

 tracts of, in lateral column, 164 

 in posterior column, 164 

 in white matter, 156 

 ventral longitudinal bundle, 170 

 vestibulo-spinal tract, 170 

 reflex movements, 135 

 reflexes in mammals, 138 

 respiratory center, 611 

 Spirometer, 579 

 Spleen, physiology of, 738 

 Stannius, first ligature of, 499 

 Stapedius muscle, function of, 358 

 Starvation, effect of, on body-metab- 

 olism, 812 



Steapsin (see Lipase) 

 Stenson's duct, 666 

 Stereognostic sense, 189 

 Stereoscopic vision, 347 

 Stethoscope, 485 

 Stimulants, 656 



nutritive importance of, 805 

 Stimuli, artificial, of muscle, 23 

 Stokes-Adams syndrome, 508 

 Stokes' s reducing agent, 397 

 Stomach, absorption in, 698 

 anatomy of, 639 

 automaticity of, 643 

 digestion in, 696 

 glands of, 683 

 histological changes in, during 



activity, 684 



means of obtaining secretion of, 685 

 mechanism of gastric secretion, 



689 



movements of, 640 

 musculature of, 640 

 properties of pepsin of, 691 

 secretory nerves of, 688 

 Strabismus, 340 

 Stromuhr, 436 

 Submaxillary ganglion, 668 

 Succus entericus, 710 

 Sugars, absorption of, in stomach, 



699 



metabolism of, in body, 794 

 Sulphur, forms in which excreted, 

 759 



Summation of muscular contractions, 



39 



of stimuli in nerve centers, 130 

 Superior olivary body, relation of, to 



auditory paths, 200 

 Supplemental air, 580 

 Suprarenalin, 776 

 Swallowing, 634 



respiration, 636 

 Sweat, amount and composition of, 



766 



nerve centers for, 769 

 secretory fibers of, 767 

 Sweat-nerves, action of, in heat regu- 

 lation, 829 

 Sympathetic nervous system, general 



relations, 231 

 resonance, 366 

 Syntonin, 693 



Systole, duration of, in heart. 489 

 Systolic arterial pressure, 446 



determination of, in animals, 



447 



in man, 453 



plateau of ventricular contraction, 

 485 



TABES dorsalis 163 

 Taste buds, 275 



center for, in brain, 204 

 nerves of, 270 



sensations, classification of, 272 

 specific energy of, 273 

 threshold stimulus, 275 

 sense of, 270 



stimuli, mode of action, 274 

 Taurin, 725 

 Taurocholic acid, 725 

 Tectorial membrane, 368 

 Temperature (see Heat} 



effect of, on body metabolism, 811 

 on gases in solution, 600 

 on heart rate, 529 

 on muscular contraction, 28 

 of human body, 822 

 sense, distribution and character- 

 istics, 259 



path for, in spinal cord, 163, 165 

 punctiform distribution of, 257 

 Tension of gases in solution, 601 

 Tensor tympani muscle, function of, 



358 



Tenth cranial nerve, nucleus of, 229 

 Testis, internal secretion of, 778 

 Tetanus, number of stimuli necessary 



for, 42 



of artificial muscle, 71 

 of muscle, 39 

 opening and closing, 86 

 Theobromin, 757, 805 

 Third cranial nerve, nucleus of, 226 



