500 



INDEX. 



Heart, locomotion of, 186 



twisting, hardening, short- 

 ening, and elongation of, 187 



impulse of, 191 



succession of movements of, 192 



force of, 197 



action of the valves, 199 



sounds of, 203 



cause of the sounds of,. . . . 207 



relations of the sounds to 



the blood-currents, 210 



frequency of action of, 211 



influence of age and sex on 



frequency, 212 



influence of posture and mus- 

 cular exertion, 213 



influence of exercise, 215 



influence of sleep, 216 



influence of temperature, ... 216 



influence qf respiration on 



action of, 217 



cause of rhythmical contrac- 

 tions of, 220 



irritability of, 222 



pulsations of, after removal 



from the body, 223 



effect of ligature of coronary 



arteries on pulsations of, 225 



effect of emptying the cavi- 

 ties, . , 226 



influence of the nervous sys- 

 tem on, 228 



influence of pneumogastrics 



on, 231 



effects of blows on epigastrium 



on 238 



Hematine, 92 



Hematosis, 452 



Hemodynamometer of Poiseu- 



ille, 262, 265 



registering instrument of 



Ludwig (note), 264 



differential instrument of Ber- 

 nard (note), 266 



Hydro-carbons, general considera- 

 tions, 26, 48 



Hydro-chlorate of ammonia, 47 



Inorganic principles, general con- 

 siderations, 25 



table of, 28 



: division into essential constit- 

 uents of the tissues and those 



which influence nutrition, 47 



Inspiration, muscles of (table),.. .. 368 



action of diaphragm in, 369 



action of scaleni, 372 



Inspiration, action of intercostals, . 373 



movements of, the ribs in, ... 374 



action of levatores costarum, 378 



auxiliary muscles of, 378 



action of serratus posticus 



superior, 378 



action of sterno-mastoideus, 



levator anguli scapulae, and su- 

 perior portion of trapezius, 379 



action of pectoralis minor, 



inferior portion of pectoralis 

 major, and serratus magnus, ... 380 

 Intercostals, internal, action of, in 



>respiration, 386 



Infra-costales, action of, in respira- 

 tion, 387 



Keratine, 91 



Lactic acid, 67 



sources and function of, .... 68 



Larynx, anatomy and respiratory 



movements of, 358 



Laughing, 396 



Levatores costarum, action of, in 



respiration, 378 



Levator anguli scapulae, action of, 



in respiration, 379 



Leucocytes, 121 



development of, 124 



proportion of, to red corpus- 

 cles, 125 



Liver, influence of respiration on 



circulation in, 322 



Liver-sugar, . , 50 



Lungs, anatomy of parenchyma of, 361 



capacity of, 397 



carbonaceous matter in, .... 364 



vital capacity of, 403 



Melanine, 93 



Milk-sugar, 50 



Mucosine, 89 



Musculine, 90 



Nitrogen, exhalation of, in respira- 

 tion, 451 



of the blood, 465, 468 



Nitrogenized principles, general 

 considerations, 27, 69 



Nitrous oxide, effects of respira- 

 tion of, 415 



Non-nitrogenized principles, ... 25, 48 



Obliquus externus and internus, 

 action of, in respiration, 388 



