INDEX. 



933 



Olfactory sensations, threshold stim- 

 ulus, 283 

 sense cells, 280 

 stimuli, nature of, 281 

 Oncometer, 770 

 Ophthalmoscope, 311 

 Ophthalmometer, 314 

 Opotherapy, 793 

 Opsonins, 418 

 Optic chiasma, decussation in, 197 



structure of, 195 



nerve, course of fibers of, in brain, 



195 



radiation, 196 

 thalamus, functions of, 216 



in vision, 199 

 tracts, structure of, 197 

 Optical deceptions, 360 

 Optograms on retina, 319 

 Osmosis, definition of, 914 

 Osmotic pressure, definition of, 914 

 determination of, 916 

 of blood, 397 



Oval field of Flechsig, 171 

 Ovaries, internal secretion of, 803 



relation of, to menstruation, 877 

 Overtones, production of, 374 

 Ovulation, 873 

 Ovum, fertilization of, 883 



implantation of, in uterus, 884 

 maturation of, 880 

 passage of, into uterus, 879 

 Oxalate solutions, effect of, on coagu- 

 lation, 435 

 Oxidases, 683, 866 

 Oxidations, theories of, 866 

 Oxygen, action of, on respiratory 



center, 641, 649 

 compound of, with hemoglobin, 



403 



condition of, in blood, 624 

 effects of, on muscular irritability, 



63 



varying pressures of, on respira- 

 tion, 649 



tension of, in alveolar air, 628 

 in tissues, 629 

 in venous blood, 628 

 Oxyhemoglobin, 403 

 Oxypurins, 778 



PACCHIONIAN bodies of brain, 575 

 Pain sense, distribution and char- 

 acteristics of, 266 

 localization of, 267 

 path for, in cord, 167 

 Pancreas, action of lipase in, 730 

 anatomy of, 721 

 curve of secretion of, 723 

 digestive action of secretion. 725 



on carbohydrates, 729 

 internal secretion of, 804 



Pancreas, normal mechanism of secre- 

 tion, 724 



secretory nerves of, 722 

 Paraglobulin, 423 

 Paralysis (motor), 186 

 Paralytic secretion (saliva), 698 

 Parapeptone, 714 

 Parathyroid, structure and function 



of, 794, 795 



Parthenogenesis, 884, 903 

 Parturition, physiology of, 888 

 Pendular movements (intestine), 666 



sound waves, 373 

 Pepsin, 711 



discovery of, 678 



properties of, 711 

 Pepsin-hydrochloric acid digestion, 



713 



Peptids, 729, 908 

 Peptone, 714, 912 



absorption of, in stomach,. 720 



effect on clotting of blood, 435 



hemi- and anti-, 726 

 Peptozym, 436 

 Pericardial liquid, 423 

 Perimeter, 320 

 Peripheral field of vision, 321 



resistance in circulation, 477 

 Peristalsis, 666 

 Peroxidases, 869 

 Perspiration (see Sweat) 

 Pettenkofer's reaction, 746 

 Pfluger law of stimulation, 84 



tetanus, 86 

 Phagocytes, 418 

 Phenolsulphuric acid, 781 

 Phenylalanin, 727, 907 

 Phloridzin diabetes, 823 

 Phosphocarnic acid, 60 

 Phrenology, 181 

 Physiological diplopia, 351 



oxidations, theories of, 866 

 Lavoisier's work, 588, 852 



point (vision), 323 



saline, 398 



Physostigmin, action of, on iris, 308 

 Pilocarpin, action of, on heart, 539 

 on iris, 308 



on salivary glands, 697 

 on sweat glands, 791 

 Pituitary body, structure and func- 

 tions of, 801 

 Piqure, 822 



Placenta, functions of, 885 

 Plain muscle, 52 



Plasma of blood, composition of, 420 

 Plethysmography, 553 

 Pneumogastric nerve (see Vagus) 

 Pneumograph, 599 

 Pneumothorax, 608 

 Poikilothermous animals, 853 

 Polar bodies of ovum, 881 



