INDEX. 



1039 



Mucin of goblet-cells, formation of, 157, 158 



of saliva, amount of, 162 

 Mucins, 1019 



Mucous glands. See Glands. 

 membrane, gastric, composition of the secre- 

 tion of, 179 



glands of the, structure, 178 

 irritation of, temperature-sensation not 



discriminated by, 842 

 irritation of, touch-sensation not induced 



by, 840 

 olfactory, 850 

 Murexid, 998 

 Muscse volitantes, 766 

 Muscarin, 986 



action of, on the heart, 442 

 Muscle, "after-loaded," 108 

 altered condition of, after contraction, 109 

 change in, in rigor mortis, 144 

 composition of, 32 

 conduction in both directions in, 86 

 conductivity of, loss and recovery of, 83 

 contraction of. See Contraction. 

 contraction-wave of, length of, methods of 



determining, 90 

 rate of transmission of, 88-90 

 death of, chemical change in, 144 

 digastric, function of, 310 

 dying, circumscribed contraction of, 42 

 effect of mechanical stimulus on, 93 

 elasticity of, 104 



changes in the, conditions influencing, 105 

 excitation of, effect of rate, on height and 



form of contraction, 109 

 continuous contractions caused by con- 

 tinuous excitation, 123 

 effect of frequent excitation on the 

 height of separate muscular contrac- 

 tions, 109 

 effect of frequent excitation to produce 



tetanus, 114 

 effect of frequent excitations upon the 



form of separate contractions, 113 

 effect of exceedingly rapid excitations, 



122 

 effect of gradually increasing the rate 



of excitation, 121 



effect of, upon the form of separate con- 

 tractions, 113, 114 

 explanation of the great height of 



tetanic contractions, 118 

 number of excitations required to tetan- 



ize, 121 

 relative intensity of tetanus and single 



contractions, 122 



summary of the effects of rapid excita- 

 tion that produce tetanus, 121 

 excitations, double, effect of, 118, 119 

 extensibility and elasticity of, 104-106 



a protection against injury, 106 

 gases of, 150 



glycogenetic function of, 270 

 importance of the blood-supply to the, 75 



of the circulation to the, 73 

 injured, "diminution effect" upon, 141 

 tetanized, changes of electric potential in, 



140 



intestinal, of the fly, structure of, 84 

 irritability of, independent, 40-42 



curare experiment, 41 



conditions which determine the effect of, 42 

 "loaded," 108 



masseter, function of the, 310 

 omohyoid and pectoralis, of turtle, contraction 



and function of, 107 

 phenomena, electric, theories of, 138 

 pterygoid, external, function of, 310 



Muscle, pterygoid, internal, function, 310 

 reaction of human, to electric currents, a 



means of diagnosis, 58 

 rest of, necessary to restoration of normal 



condition, 109 

 stapedius, 814 



stretching of, effect of, on irritability, 66 

 striated, conductivity of, 82 

 optical properties of, during rest and action, 



102 



contraction of, rapidity of, 308 

 temporal, function of, 310 

 tensor-tympani, 814 



tetanized, amount of shortening in, 122 

 Muscle and nerve, chemistry of, 144-151 



conditions which determine the efficiency of 



irritants on, 43 

 effect of constant electric current on the 



irritability and conductivity of, 61 

 electrical phenomena in, 134-143 

 excitation of, conditions which determine 



the effect of, 42 



influences favoring the maintenance of the 



normal physiological condition of, 73 



irritability of, influence of irritants upon 



the, 65 

 irritant, electric current as an, effect of, 



43-60 

 irritating effect of induced electric currents, 



48 



of the electric current, 43 

 result of, conditions determining the, 42 

 physiology of, general, 32 

 reflex movements of, 41 

 stimulating effects of making and breaking 



the direct electric current, 50 

 Muscle - contraction, influences affecting the 



activity and character of the, 106 

 latent period of, 101, 113, 114. See Contrac- 

 tion. 

 Muscle-contractions, graphic method of study, 



98-101 



Muscle-fibre, structure of, histological, 103 

 Muscle-fibres, conduction in, rate of, 92 

 Muscle-injury, electrical current of, 138 

 Muscle-plasma, 146, 147 

 Muscle-protoplasm, direct irritation of,, proofs of, 



42 



irritability of, 35, 40-42 

 Muscle-serum, constituents of, 148-150 

 Muscle-sounds, 124 

 Muscle-spindles, 845 



Muscle-tissue of the bladder, histology of, 328 

 of the intestines, contraction-wave of, 309 

 of the ureter, contraction-wave of, 309 

 plain, of the alimentary canal, 307 

 contraction of, 308, 310 

 "tone" of, defined, 309 

 smooth, conductivity of, 82 

 structure of, 32, 33 

 Muscle-tonus, 133 



Muscles, abdominal, contraction of the, spas- 

 modic, influence of, in vomiting, 325 

 functions of, 515 

 action of the, in standing, 859 



upon the bones, method of, 857 

 capacity of the, for work or exercise, 77 

 chemical changes in, 73 

 classes of, 33 

 concerned in the act of vomiting, 326 



in the movements of the jaw, 310 

 condition of, following removal of the cere- 

 bellum, 714 

 conduction in, 84 



rate of, 88-90 



contraction in different, rate of, with their 

 function, 107 



