930 



INDEX. 



Invertase, 685, 717, 732 



in stomach, 717 

 Involuntary muscle, 52 

 lodothyrin, 795 

 Iris, action of drugs upon, 308 



antagonistic action of muscles 



upon, 305 



muscles and nerves of, 304, 

 Iron in hemoglobin, 404 



salts, source and nutritive impor- 

 tance of, 833 

 Irritability, definition of, 22 



of muscle, 22 



of nerve fibers, 80 

 Isodynamic equivalent of foodstuffs, 



848 



Isometric muscular contractions, 27 

 Isotonic muscular contractions, 27 



solutions, definition of, 885 

 Isotropous substance in muscle, 19 



JACOBSON, nerve of, 687 

 Judgments, visual, of distance and 



size, 359 

 of perspective or solidity, 354 



KIDNEY, action of diuretics on, 748 



blood-flow through, 769 



composition of secretion of (urine), 

 772 



function of convoluted tubules, 767 

 of glomerulus, 765 



internal secretion of, 806 



secretion of urine in, 763 



structure of, 762 

 Kjeldahl's method for determination 



of nitrogen, 773, 809 

 Knee-jerk, conditions influencing, 150 



definition of, 147 



explanation of, 149 



reinforcement of, 147 



use of, as diagnostic sign, 151 



LABOR, physiology of, 888 

 Lactic acid in muscle, 60 



increase of, during contraction, 



64 



Laked blood, 397 

 Langerhans, islands of, 806 

 Large intestine, digestion and absorp- 

 tion of food in, 738 

 movements of, 670 

 Larynx, reflex effects from, on respi- 

 rations, 638 



Latent period of muscular contrac- 

 tion, 26 

 Lecithin, 748 

 Lemniscus, lateral, 202 



median, 192 

 Leucin, 727, 907 



Leucocytes, effect of hemorrhage 

 upon, 438 



Leucocytes, functions of, 416 



in formation of thrombin, 429 



structure and classification, -4 Hi 



variations in number of, 417 

 Leuconuclein, effect upon blood coag- 

 ulation, 434 

 Liebermann's . reaction for proteins, 



910 

 Liebig's classification of foodstuffs, 



840 



Light-reflex in eye, 306 

 Lipase, 683 



in pancreatic secretion, 730 



in stomach, 717, 720 



reversible reaction of, 681 

 Listing's law, 349 



schematic eye, 290 

 Liver, bile-pigments of, 745 

 acids of, 746 



defensive action of, in coagulation, 

 432 



formation of urea in, 758 



glycogen of, 752 



glycogenic action of, 756 



internal secretion of, 794 



pulse, 491 



quantity of bile, 744 



secretion of bile, 748 

 Localization of function in cerebellum, 



227 



in cerebrum, 181 

 Localizing power of skin, 264 

 Locke's solution, 521 

 Locomotor ataxia, 164 

 Lud wig's theory of urinary secretion, 



763 



Luminosity of visual sensations, 327 

 Lungs, gaseous exchanges in, 627 



vasomotors of, 571 

 Luxus consumption, 813 

 Lymph, action of lymphagogues, 443 



circulation of, 585 



formation of, 441 



summary of factors concerned in 



formation of, 445 

 Lymphocytes, 416 

 Lysin, 728, 907, 912 



MALTASE, 685, 700, 730, 732 



Maltose, 701, 730 



Mammary glands, effect of uterus 



upon, 889 



structure and functions, 889 

 Manometer, Fick's spring, 461 

 Hurthle's, 462 



maximum and minimum, 462 

 use of, for determining blood-pres- 

 sure, 455 

 Mast cells, 417 

 Mastication, 655 

 Mathematical perspective, 355 

 Mean blood-pressure, 460 



