INDEX 



521 



Muscle, smooth, 21, 92 ; striated, 3 ; 

 quick and sluggish, 57 ff., 65 ; red 

 and pale, 60 ; contraction, 48, 54 ; 

 microscopic reaction, 46 ; distribution 

 in time, 56 ; natural muscular con- 

 traction, 139 ; propagation of con- 

 traction wave, 146 ff. ; polymerous 

 muscle, 228 



Muscle columns, 20, 25, 32 



Muscle current, resting, 321 if., 334 ; weak 

 longitudinal current, 322; E.M.F., 

 335 ; decline, 343, 344 ; in uninjured 

 muscle, 345 ; negative variation, 362 ; 

 positive variation, 368 ff. ; excitation 

 from muscle, 326, 362, 427 ; inclina- 

 tion current, 325 ; law of, 353 



Muscle tone, 135-139 



Muscular tonus, 100, 235, 260, 265 



Myogram, 57 



Myograph, 56 



Myonema of infusoria, 4 



NEGATIVE variation, of muscle current, 

 362, 370 ; in the heart, 396 ; theory, 

 388 ; of skin current, 481 ff. ; in 

 excitation of secretory nerves, 486, 

 500 



OBLIQUE striation, in muscle, 15 ff. 

 Opening contraction (persistent), 186, 210, 



233 

 Opening inhibition, anodic and kathodic in 



the heart, 263 

 Opening twitch, spurious in excitation of 



muscle, 329, 334 



PARAM^CIUM, galvanotropci manifesta- 

 tions, 308 



Parelecrtionomy, 338 ff. 

 Pelomyxa, electrical excitation, 305 

 Photogram of action current, 402 ff. 

 Polar action of electrical current on muscle, 

 203, 216 ; on the heart, 228 ff., 258 ; 

 on protozoa, 302 ; on ova, 310 

 Polarisation, galvanic, of muscle, 279 ; mor- 

 phological, of ova, 310 ; internal, 442 ; 

 positive of muscle, 443 

 Pole, definition of physiological, 212 

 Polystomella, electrical excitation, 303 

 Porret's phenomenon in muscle, 273 

 Potassium salts, action on muscle, 67, 172 ; 

 on polar excitation, 220 ; on electro- 

 motive action, 355, 356 

 Pre-existence of muscle current, 338 

 Pressure of muscle, action on secondary 

 excitation from muscle to muscle, 427 

 Protozoa, electrical excitation, 299 

 Pseudopodia, reaction in electrical excita- 

 tion, 300 



RAPIDITY of excitation and contraction 



wave in muscle, 147, 374 

 Reaction of degeneration, 182, 273 

 Refractory period, in the heart, 288 

 Renewal of cross-section, effect on muscle 



current, 344 



Resistance to conductivity in muscle, 200 

 Rheotachygraphy, 373, 386 

 Rheotome, Bernstein's differential, 367 ; 



fall, 353, 385 

 Rhizopoda, electrical excitation, 299 - 



SALIVARY glands, electromotive action, 



509, 510 



SALPA muscles, 20 



Salt (common), action on muscle, 104 

 Sarcoplasm, 28 ff., 68, 90 

 Secondary electrode points, effect on polar 



excitation, 255 

 Secondary electromotive manifestations in 



muscle, 442 ff. 

 Secondary excitation, from muscle to nerve, 



361, 396, 413 ; from muscle to 



muscle, 427 

 Secretion currents, 463, 485, 513 ; in man, 



393, 395 

 Skin current, in frog, 462 ff. : in man, 



391 



Sodium salts, action on muscle, 105, 221 

 Staircase contraction, 71, 121, 123 

 Strength of current, as affecting height of 



twitch, 70 



Summation of stimuli, 113 ff. 

 Superposition of twitches, 115 

 Supported muscle, effect on twitch, 121 

 Survival of smooth muscle, 92 



TELEPHONE as rheoscope, 410, 424 



Temperature, effect on muscle, 91, 97 ff., 

 151 ; on muscle current, 339 ; on 

 gland currents, 468 



Tension, effect on muscle twitch, 76 ff. 



Tetanus, nature of, 113 ff; rhythmical, 131, 

 135 ; natural, 139 ; strychnia tetanus, 

 143 ; in muscles that are functionally 

 dissimilar, 125 ; in heart, 129 ; gal- 

 vanic manifestations, 364 ; secondary 

 from muscle, 364 



Tonus in smooth muscle, 100 ; in cardiac 

 muscle, 102 



Tortoise muscles, 61, 124 



Transverse passage of current in muscle, 

 199 



Transverse resistance of muscle, 200 



Transverse section, artificial, relation to 

 muscle current, 322 ; effect on polar 

 excitation by current, 217 ; on opening 

 excitation, 330 



Twitch, secondary from muscle, effect 

 of tension in primary muscle, 413 ; 

 with direct excitation of primary 



