934 



INDEX. 



Polypeptid, 729, 908 



Positive electrical variation in heart, 



540 

 Posterior columns, descending tracts 



of, 171 

 tracts of, 162 



root, termination in cord, 161 



cells of, origin of, 78 

 Postganglionic nerve fibers, 235 

 Potassium phosphate in muscle, 65 



salts, action of, on heart, 520 

 Potential energy of food, 845 

 Precipitins, 909 

 Predicrotic pulse wave, 488 

 Preganglionic nerve fibers, 235 

 Pregnancy, changes in, 887 

 Prepyramidal tracts, 171 

 Presbyopia, 296, 301 

 Pressor nerve fibers, 560 

 Pressure of gases in solution, 622 



sense,. distribution of, 263 

 deep, 260 



localizing power, etc., 264 

 Primary proteoses, 714 

 Principal axis of lens, 287 



focal distance, 287 

 Projection system of fibers (brain), 



175 



Propeptone, 714 

 Prostate gland, 894, 898 

 Protalbumoses, 714 

 Protamins, 895, 912 

 Protanopia, 334 



Proteins, absorption of, in intestine, 

 737 



as glycogen-formers, 754 



classification of, 910 



definition and structure of, 907 



diffusion of, 919 



excretion of nitrogen of, 773 



general reactions of, 908 



in blood-plasma, 422 



necessary amount of, in diet, 813 



normal metabolism in body, 811 



of muscle, 57 



osmotic pressure of, 918 



putrefaction of, in large intestine, 

 740 



specific dynamic action of, 818 

 Proteolytic enzymes, 683 

 Proteoses, general properties of, 714, 



912 



Protopathic sensations, 260 

 Prothrombin, 430 

 Proximate principles of food, 675 

 Psychophysical law, 256 

 Ptyalin, 690 



action of, in stomach, 663 



digestive action of, 700 



effect of various conditions upon, 



701 

 Puberty, 874, 893 



Pulmonary arteries, vasomotors of. 



571 ' 



circulation, peculiarities of, 480 

 variations of pressure in, 481 

 Pulse, anacrotic waves of, 489 

 catacrotic waves of, 488 

 form of wave, 487 

 general statement, 483 

 varieties of, in health and disease, 



490 



velocity of, propagation of, 484 

 venous, 491 

 Pulse-pressure, 459 

 Purin bases, 61, 777 

 Purkinje, images of, 294 



phenomenon, 328 

 Putrefaction in intestines, 740 

 Pyloric glands of stomach, 703 



secretion of, 713 

 Pyramidal tract in brain, 185 



in spinal cord, 169 



Pyrrol compounds in protein mole- 

 cule, 727 

 Pyrrolidin-carboxylic acid, 727, 907 



REACTION time, 106 



of degeneration, 89 

 Reactions for proteins, 908 



biological, 399 



Gmelm's, 745 



of blood, 393 



of contents of small intestine, 

 739 



of urine, 772 



Pettenkofer's, 746 

 Recurrent sensibility of anterior roots, 



Red blood-corpuscles, chemical com- 

 position of, 421 



condition of hemoglobin in, 396 

 effect of hemorrhage upon, 413 

 hemolysis of, 397 

 influence of spleen upon, 413 

 number and size of, 395 

 origin and fate of, 412 

 variations in number of, 414 



Reduced hemoglobin, 403 

 schematic eye, 290 



Reflex actions, axon reflexes, 144 

 classification of, 137 

 definition and historical, 134 

 from parts of brain, 143 

 influence of condition of cord on, 



142 



of sensory endings upon, 139 

 inhibition of, 140 



of heart, 536 

 knee-jerk, 147 



of erection and ejaculation, 897 

 of respiratory center, 633, 638 

 of vasomotor nerves, 560 

 preparation of reflex frog, 136 



