INDEX. 



697 



Nerves, electric currents of, 119 



electric currents of, negative varia- 

 tion of, 1 20 



effects of galvanic current on, 122 

 peripheral endings of, 109 

 physiologic properties of, 115 

 pilo-motor, 438 



polar stimulation of, 126, 127 

 relation of, to central nerve system, 

 108 



Neuron, 103 



Nicotin, actions of, 168, 567 



Nucleus caudatus, 475 

 cuneatus, 468 

 gracilis, 468 

 lenticularis, 475 



Nutrition of the embryo, 663 



O. 



Oculo-motor nerve, 531 

 Ohm's law, 672 

 Olein, 30 



Olfactory nerve, 525 

 Oncograph, 431 

 Oncometer, 431 

 Operculum, 491 

 Ophthalmic ganglion, 569 

 Optic constants, 607 



thalamus, 474 



functions of, 484 

 Optogram, 628 

 Organ of Corti, 642 

 Osazones, 29 

 Ossicles of ear, 639, 644 

 Otic ganglion, 570 

 Ovary, 650 

 Ovulation, 653 

 Ovum, 651 

 Oxygen in blood, 364 



in tissues, 368 



quantity absorbed daily, 374 

 Oxyhemoglobin, 251 



P. 



Pacinian corpuscle, 589 

 Palmitin, 30 

 Pancreas, 196 

 Pancreatic juice, 198 



physiologic action of, 200 

 Partial pressure of gases, 363 

 Parturition, 667 

 Pathetic nerve, 536 

 Pepsin, 182 

 Peptones, 188 

 Perspiration, 454 

 Petrosal nerves, 546 

 Pettenkofer-Voit respiration apparatus, 

 372 



Pexin, 182 

 Phagocytosis. 257 

 Phloridzin diabetes, 410 

 Phonation, 572 



mechanism of 3 582 

 Pilo-motor nerves, 438 

 Pituitary body, 414 

 Placenta, 664 



Plasma of blood, composition of, 233 

 Pleura, 342 

 Pneumatograph, 357 

 Pneumogastric nerve, 552 

 Pneumograph, 355 

 Pons varolii, 470 



functions of, 481 

 Portal vein, 224 

 Presbyopia, 620 

 Proteids, 31 



color tests for, 36 

 Protoplasm, properties of, 44 

 Ptyalin, 165 

 Pulmonary vascular apparatus, 329 



ventilation, 301 

 Pulse, 316 



frequency, 317 



wave, velocity of, 318 

 Punctum proximum, 618 



vemotum, 618 

 Pyramidal tracts of spinal cord, 449 



R. 



Reaction of degeneration, 131 

 Red corpuscles, 236 



chemic composition of, 244 



function of, 242 



life history of, 243 



number of, 238 



of vertebrated animals, 241 

 Reduced hemoglobin, 250, 251 

 Reflex action, 131, 453 



laws of, 458 



Refractory period of the heart, 290 

 Regnault's and Reisset's respiration ap- 

 paratus, 373 



Relation of gases in the blood, 363 

 Rennin, 182 

 Reproduction, 650 

 Reserve air, 356 

 Residual air, 357 

 Respiration, 335 



changes in composition of air during, 



359 



changes in composition of blood, 362 

 changes in tissues, 367 

 chemistry of, 358 

 complemental air, 356 

 frequency of, 354 



mechanism of gaseous exchange, 379 

 nerve mechanism of, 379 



