INDEX 



Reflexes, flexor and extensor, 587. 



from heart, 194. 



general features of, 576. 



inhibition of, 577. 



locomotor, 617. 



purposive, 577, 586. 



psychical influence over, 577. 



reenforcement of, 579. 



regulative, 576. 



respiratory, 327. 



segmental, 576. 



suppression of, 578, 579. 



tendon, 587. 



through sympathetic ganglia, 583. 



to different stimuli, 580. 



to heart, 193. 



to pancreas, 270. 



to salivary glands, 260. 



to stomach, 263. 



vasomotor, 235. 

 Refraction, angle of, 509. 



in eye, 510. 



of light, 508. 



static, in eye, 519. 

 Refractory period of heart, 183. 



of nerve cells, 572. 



of nerves, 429. 



of skeletal muscle, 429. 

 Regeneration, 64. 



determining factor in, 64, note. 



in sympathetic system, 689. 



of kidney tissue, 65. 



of liver tissue, 65. 



of nerve tissue, 574. 

 Registers of voice, 504. 

 Registration, see Graphic method. 



by air-transmission, 11. 



by photography, 13. 

 Regulation of blood pressure, 194, 219. 



of heart activity, 186, 194. 



of respiration by vagi, 327. 



of temperature in body, 406. 

 Regurgitation of blood, 166, 167. 

 Rennin, 250. 

 Reproduction, physiology of, 691. 



post-embryonic, of nerve cells, 574. 

 Reserve air, 320. 

 Residual air, 320. 

 Resistance in arteries, 205. 



to conduction in nerves, 411, 425, 426. 



to electric current, 418, Fig. 156. 



to fatigue of nerves, 442. 

 Resonance, 492. 

 Resonance theory of hearing musical sounds, 



498. 



Resonance tone of external auditory meatus, 

 494. 



objections to, 501. 

 Resonator of Helmholtz, 493, Fig. 195. 



Resonators of cochlea, 498. 

 Respiration, action of various efferent nerves 

 on, 330. 



artificial, 5, 231, 325. 



effect of suction in thorax on work of, 312. 



exchange of air in lungs in, 319. 



heat loss and, 403. 



influence of higher brain centers on, 329. 



innervation of, 323. 



movements of, 310. 



muscular work and, 318. 



periodic variations in, 333. 



regulation of, by vagi, 327. 



residual air, reserve air, etc., of, 320. 



types of, 318, Fig. 126; 333. 

 Respiration apparatus, of Atwater and Bene- 

 dict, 86. 



of Pettenkoffer, 86. 



of Pettenkoffer and Voit, 87, Fig. 41 ; 88. 



of Sonden and Tigerstedt, 88, Fig. 42; 89. 

 Respiration calorimeter, 86, Fig. 40. 

 Respiratory center, 325. 



normal stimulation of, 331. 



resistance of, to asphyxiation, 573, Fig. 257. 

 Respiratory centers, spinal, 325, 326. 

 Respiratory curve of rabbit, 314, Fig. 123; 328, 



Fig. 129. 

 Respiratory exchange of gases, 340. 



amount of, 345. 

 Respiratory foods, 111. 

 Respiratory movements, 310. 



concomitant, 321. 



effect of, on blood pressure, 227. 

 on heart, 176. 



force of, 322. 



innervation of, 323. 



number of, 318, 319, Fig. 127. 

 registration of, 312. 



special forms of, 321. 

 Respiratory nerves, 324. 

 Respiratory passages, 310, 323. 



ciliated epithelium in, 323. 



pressure variations in, 321. 

 Respiratory products, 89, 342. 

 Respiratory quotient, 105, 343. 



use of, in metabolism experiments, 105. 



values of, under different circumstances, 



343. 



Respiratory reflexes, 327. 

 Respiratory sounds, 322. 

 Respiratory system, 31. 

 Respiratory variations of blood pressure, 229, 



Fig. 95; 230, Fig. 96. 

 Restitution after lesions of cortex, 646. 

 Retention of proteid, 120. 



in growing body, 123. 

 Reticulin, 78. 



percentage composition of, 82. 

 Reticulum of the neuropile, 560, 561, 585. 



