INDEX 



759 



Substantia nigra, 584, 585 

 Succus entericus, 370 

 Sucking, center for, 575 

 Sudoriferous glands, 420 

 Sugar, test for, in urine, 430 

 Sulphates, 104 

 Sulphur in proteins, 106 

 Sulphureted hydrogen, effect of 



breathing, 304 

 Sulphuric acid in urine, 411 

 Sulphurous acid, effect of breathing, 



34 

 Summation, 490 



of stimuli, 553 



Superior laryngeal nerve in respira- 

 tion, 299 



Supplemental air, 283 

 Suprarenal capsules, 456 



active principle of, 457 

 functions of, 457 

 internal secretion, 459 

 nerves of, 457 



relation to Addison's dis- 

 ease, 457, 458 

 extract, 457 

 Swallowing, 339 

 Sweat, 422 



centers, 576 



chemical composition of, 422 



glands, 420 



influence of nervous system on 



secretion of, 423, 426 

 Sympathetic ganglia, functions and 



structure, 624, 627 

 nervous system, 624 

 functions, 627 



organization and distribu- 

 tion, 624 

 Synapse, 552 



Synovial membranes, 317 

 Systole of heart, 174, 175 



TACTILE corpuscles, 75, 633 

 of Meissner, 75 



menisques, 77 

 Taste, 638 



after-, 642 



buds, 639 



center, 606 



influence of fifth nerve on, 615 



seat of, 638, 641 



sensation of. 705 



Taste, varieties of, 641 

 Taurin, 367 

 Teeth, 51 



dentine of, 53 

 development of, 56 

 enamel of, 54 

 ivory of, 53 

 permanent, 52 

 structure of, 52 

 temporary, 51 

 Tegmentum, 577, 584 

 Telophase, 21 

 Temperature, body, 461 



dissipation of, 464 

 influence of extreme heat 



and cold on, 465 

 regulation of, 463 

 sense of, 635, 705 

 variations in, 461 

 influence of, on muscular con- 

 traction, 487, 529 

 Tenth nerve, 620 

 . Testes, 715 



relation to metabolism, 460 

 Tetanometer, 530 

 Tetanus, 490, 530 

 Thermogenic centers, 468 

 Third nerve, 610 

 Thoracic viscera, vascular nerves for, 



246 



Thorax, respiratory changes in diam- 

 eter, 309 

 Thrombin, 121 

 Thrombocytes, 132 

 Thrombogen, 123 

 Thrombokinase, 122, 158 

 Thyroid gland, 454 



accessory, 454, 456 

 functions of, 454 

 Tidal air, 282, 310 

 Tissues, connective, 32 

 elementary, 23 

 epithelial, 23 



interchange of gases in, 296 

 muscular, 58 

 nervous, 65 

 Tone, of artery, 233 



of muscle, 192, 557, 

 Tongue, 639 



action of, in speech, 521 

 papillae of, 640 

 Tonicity of heart muscle, 192 



