INDEX 



791 



Pneumatogram, 410 

 Pneumogastric or vagus nerve, 649 

 Pneumograph, 410 

 Polar stimulation, 111 



of human nerves, 111 

 Pons varolii, 567 



functions of, 578 

 Postures, 85 

 Post-geniculum, 569 

 Potassium salts of the body, 22 

 Pre-geniculum, 569 

 Presbyopia, 714 

 Proprioceptive nerves, 538, 555 

 Prosecretin, 190 

 Protamins, 14 

 Protein metabolism, physical properties, 13 



precipitation tests, 20 



structure of, 13 

 Proteins, 12 



chemic composition, 12 



color reactions, 19 



fermentability, 14 

 Proteoses, 19 



Protopathic sensibility, 558 

 Proximate principles, 6 

 Ptyalogen, 152 

 Ptyalin, 152 

 Pulmonic blood-vessels, 378, 395 



vascular apparatus, 378 



ventilation, 416 

 Pulse, 368 



carotid, 372 



frequency, 260, 370 



radial, 370 



venous, 373 



volume, 290 



wave, velocity of, 370 

 Punctum proximum, 712 



remotum, 712 

 Purin bases, 461 

 Pyramidal tracts of spinal cord, 552 



Reaction of degeneration, 114 



Receptor substance, 96 



Reciprocal action of antagonistic muscles, 



544 



innervation of skeletal muscles, 544 

 Red corpuscles, 238 



chemic composition of, 244 



effects of reagents, 243 



function of, 255 



life history of, 253 



number of, 240 



of vertebrated animals, 254 



preservation of, 242 



Reduced hemoglobin, 250 

 Reflex action, 114, 541, 545 



laws of, 547 



Refractory period of the heart, 311 

 Regnault's and Reisset's respiration ap- 

 paratus, 426 



Relation of gases in the blood, 417 

 Renal duct, 466 

 Rennin, 171 

 Reproduction, 741 



Reproductive organs of the female, 741 

 Reproductive organs of the male, 745 

 Reserve air, 411 

 Residual air, 411 

 Residual heat of the body, 444 

 Respiration, 392 



changes in composition of air during, 



413 



of alveolar air, 415 

 changes in composition of blood, 416 

 changes in tissues, 422 

 chemistry of, 412 

 effects of a change of pressure of the 



blood gases on, 418 

 expiratory forces and muscles, 404 

 first inspiration, 436 

 inspiratory muscles, 401 

 mechanism of gaseous exchange, 424 

 nerve mechanism of, 428 

 number per minute, 409 

 total respiratory exchange, 425 

 volumes of air breathed, 410 

 Respiratory apparatus, 392 

 movements, 400 



effects of, on arterial pressure, 441 

 effects of, on the flow of blood 

 through the intra-thoracic ves- 

 sels, 440 



of upper air passages, 408 

 Respiratory nerve mechanism, 428 

 inspiratory center, 429 



causes of rhythmic activity of, 430 

 effect of a change of pressure of 



blood gases on, 435 

 reflex stimulation, 431 

 relation of vagus nerves, 431 

 theories of mode of action, 434 

 Respiratory pressures, 398, 405 

 quotient, 414, 

 rhythm, 409 



Cheyne-Stokes, 440 

 modification of, 437 

 sounds, 412 

 types, 408 

 Retina, 697 



