INDEX. 



643 



Muscular force, idea of, how derived, 



557 



motion, 456 



movements. See Movements, 

 sense, 461, 556 



cerebellum the organ of, 416 

 strength tested by respiratory 



efforts, 169 



tissue, of animal life, 458 

 in arteries, 115 

 contractility of, 461 

 contraction of, 462 



heat developed in, 463 

 sound in, 463 



effect of stimuli on, 377, 463 

 of heart, 460 

 involuntary, 456 

 irritability of, 461 



duration of, after death, 



464 



of organic life, 458 

 properties of, 461 

 rigidity of, after death, 465 

 sensibility of, 461 

 striped, 458 



structure of, 458-460 

 unstriped, 456, 457 



situations where found, 



457 



structure of, 457 

 in veins, 141 

 tone, 402 



Muscularis mucosae, 216, 239. 247, 248 

 Muscularity, of arteries, 119 

 evidence of, 120 

 purposes of, 121 

 of lymphatics, 282 

 of lymph-hearts, 293 

 Musical sounds, 483 

 Myopia or short-sigh tadness, 512 

 Myosin, 23 



Nabothi glandulae, 562 



Nails, chemical composition of, 24 



structure of, 341 



growth of, 343 



Narcotic poisons in stomach, experi- 

 ments on, 235 



Nasal cavities in relation to smell. 496 

 Nates (brain), 409 

 Natural organic compounds, 19 



classification of, 20 

 Nerve, depressor, 442 

 Nerve-centres, 368. See Cerebellum, 

 Cerebrum, &c. 



conduction in or through, 383 



congestion of in asphyxia, 188 



diffusion or radiation in, 385 



functions of, 382 



perception in, 383 



Nerve-centres, reflection in, 385 



conditions of, 385 

 transference of impressions in, 384 

 vaso-motor, 452 

 Nerve-corpuscles, 375 



caudate or stellate, 375 

 of retina, 504 

 simple, 375 

 Nerve-fibres, 369-382 



axis-cylinder of, 370 

 cerebro-spinal, 369 

 conduction of impressions by, 378 

 of one kind only, 379 

 rate of, 479 

 continuity of, 372 

 course of, 372 



difference in function not attended 



by difference of structure, 377 



effects of injury and division, 380, 



382 



fasciculi of, 372 

 force not generated by, 377 

 functions of, 376 



effect of chemical stimula- 



tion, 378 

 of mechanical irritation, 



378, 380 



of temperature, 378 

 impressions on, referred to periph- 

 ery, 381 

 kinds of, 369 

 laws of action, 378 



of motor nerves, 382 

 of sensitive nerves, 379 

 medullary or white substance of, 



370 



plexuses of, 372 

 of retina, 504 

 size of, 370 

 structure of, 369 

 sympathetic, 271 

 terminations of, 373 

 in cells, 373 

 in free ends, 373 

 in motorial end -plates, 373 

 in networks or plexuses, 373 

 in special terminal organs, 



373 



Nerves, action of stimuli on, 377, 378 

 afferent, 376 

 centrifugal, 376 

 centripetal, 376 

 cerebral, physiology of, 424. See 



Cerebral Nerves. 

 efferent, 376 

 excito-vaso-motor, 453 

 inhibitory, 113, 377 

 of motion, or motor, 377 



laws of action in, 382 

 respiratory, 185 

 of sensation or sensitive, 377 



