INDEX. 



783 



Spinal cqrd, vicarious transmission of 



impulses, 605 

 ,, hyperaesthesia after section 



of the, 606 



Spinal ganglia, functions of, 483 

 Spinal accessory nerve, 650 

 Spinal nerves, function of roots, 482 



,, sectional areas of, 599* 

 Spirometer,the, 316 

 Spleen, destruction of red corpuscles in 



the, 30 



,, variations in size of, 432 

 ,, curve, features of, 433* 

 ,, influence of nerves on, 433 

 ,, circulation in, 434 

 ,, substances present in, 434 

 ,, presence of uric acid in, 434 

 Stannius' experiment, 187 

 Stapedius muscle, uses of, 559 

 Starch, action of saliva on, 235, 236 

 ,, action of gastric juice on, 240 

 action of pancreatic j uice on, 25 1 , 



254 



Starvation, changes in body during, 444 

 Stasis, 220 

 Stationary air, 314 

 Stearic acid, 736a 

 Stearin, 738a 

 Stereoscope, the, 545 

 Stimulus, definition of, 37 

 Stimulus affecting muscular contraction, 



83 

 Stomach, why it does not digest itself, 



279 



,, movements of, 285 

 ,, absorption from, 294 

 ,, gases in, 295 



Submaxillary gland, nerves of, 257, 258* 



,, ,, action of chorda 



tympani on, 259 



,, ,, action of cervical 



sympathetic on, 

 261 



Succinic acid, 742a 

 Succus entericus, 255 



,, Thiry's method of 



obtaining, 255 

 ,, ,, act of secretion of, 



266 

 Sugar in saliva, 237 



, , action of succus entericus on cane , 



255 



,, absorption of, from intestine, 310 

 Supplemental air, 315 

 Sympathetic and chorda saliva, 262 

 Sweat, characters of, 386 

 centres, 389 

 ,, nerves, course of, 390 



Tactile judgments, 579 



,, perceptions, 572 



sensations, 575 

 Taste, 570 

 Taurin, 249, 756a 

 Taurocholic acid, 249, 763a 

 Tears, 654 



Temperature, influence of, on irritability 

 of nerve and muscle, 93 

 normal constant, of the 



body, 463 

 of the body, regulated by 



the skin, 464 



,, of the body, regulated by 



variations hi produc- 

 tion, 465 



sensations, 576 



and pressure sensations, 



separate nerves and 

 nerve endings for, 577 

 Tendon phenomena, 596 

 Tension of oxygen in blood and lungs, 345 

 ,, of carbonic acid in blood and 



lungs, 347 



Tensor tympani muscle, uses of, 558 

 Tetanic contractions, 48, 50 

 Tetanus produced with magnetic inter- 

 rupter, 50* 



Thermal changes in muscle during con- 

 traction, 70 

 Thinking and willing, time taken up by, 



644 



Tidal air, 314 

 Tissue-proteids, 452 

 Tissues, the fundamental, 5 

 Tissues and mechanisms of digestion, 233 

 ,, ,, reproduc- 



tion, 



667 



,, of respi- 



ration, 

 312 



respiratory changes in, 348 

 absence of free oxygen from, 349 

 Tone of arteries, 200 

 Tonic action in spinal cord, 596 

 Touch, nerve endings essential to, 573 



field of, 580 



Traube-Hering curves, 372, 373*, 374* 

 Tricrotic pulse, 166 

 Trigeminal nerve, 649 

 Trochlear on Pathetic nerve, 648 

 Trophic nerves, 471 

 Trypsin, 251 

 Trypsinogen, 271 

 Tryptic action, theories of nature of, 



720a 



Tunicin, 733a 

 Tyrosin, 759a 



product of pancreatic digestion, 

 252 



Unstriated muscular tissue, properties 



of, 101 

 Urari, effect of, on heart, 186 



poisoning, artificial diabetes, a 



prominent symptom of, 426 

 Urea, composition of, 428, 746a 

 its relation to kreatin, 436 

 ,, origin of, in body, 437 

 ,, ,, from leucin, 439 



secretion of, by epithelium of kid- 

 ney, 406 



