720 



INDEX 



Spinal cord, hemisection of, 531 

 intrinsic cells in, 513 

 irradiation of impulses in, 



5 21 



Lissauer's tract, 516 

 peculiarities of different re- 

 gions, 519 



postero-lateral column, 516 

 postero-marginal zone, 516 

 postero-median column, 516 

 reflex action in, 519, 524 

 reticular formation, 513 

 tracts of, 514 

 weight of, 574 



nerve-roots, functions of, 523 

 nerves, 516 



anterior roots, 517, 523 

 course of fibers, 517 

 posterior roots, 518, 523 

 reflexes, 524 

 Spirem, 19 



Spleen, vascular nerves for, 224* 

 Spongioplasm, 8, 17 

 Staircase contractions, 455 

 Stammering, 491 

 Starch, 91 



action of amylopsin on, 337 



of ptyalin on, 311, 312, 353 

 chemical reactions of, 98 

 hydrolysis of, 98 

 Starvation, 420 



death from, 420 



effect on body temperature, 421 

 symptoms of, 420, 421 

 Steapsin, 303, 334, 337 

 Stercobilin, 90, 342 

 Stereoscope, 667 

 Stethograph, 258 

 Stethometer, 257 

 Stimuli, forms of, 442 

 maximal, 454 

 minimal, 454 

 Stokes' fluid, 121 

 Stomach, 316 



absorption from, 362 

 action of pylorus, 328 

 blood-vessels of, 319 

 changes in glands during secre- 

 tion, 320 



digestion in, 313, 316 

 gases in, 349 



Stomach, glands of, 316 

 lymphatics of, 319 

 movements of, 327 

 nerves of, 316 

 nervous control of movements of, 



3 2 9 



secretion in, 320 

 structure of, 316 

 vascular nerves for, 224 

 Stomata, 25 

 Strabismus, 550 

 Stratum granulosum, 392 

 lucidum, 392 

 Malpighii, 392 

 Striated muscle, 58 



development of, 62 

 Submaxillary gland, action of atro- 



pine on, 306 



paralytic secretion of, 306 

 secretion of, 306 

 Substantia nigra, 545, 546 

 Succus eritericus, 344 

 Sucking, center for, 542 

 Sudoriferous glands, 393 

 Sugar, test for, in urine, 403 

 Sulphates, 94 



tests for, 94 

 Sulphur in proteids, 89 

 Sulphuretted hydrogen, effect of 



breathing, 279 

 Sulphuric acid in urine, 384 

 Sulphurous acid, effect of breathing, 



279 

 Summation, 459 



of stimuli, 521 



Superior laryngeal nerve in respira- 

 tion, 274 



Supplemental air, 260 

 Suprarenal capsules, 428 



active principle of, 430 

 functions of, 428 

 internal secretion, 431 

 nerves of, 428 



relation to Addison's dis- 

 ease, 429, 431 

 extract, 430 

 Swallowing, 313 

 Sweat, 395 



centers, 543 



chemical composition of, 395 



glands, 393 



