1042 



INDEX. 



Nerve-trunks, conduction, in, 83 

 Nerves, action of the, on the pancreatic secre- 

 tion, 173 



auditory, of the cochlea, 821 

 augmentor, course of, in various animals, 459 



stimulation of, effects of, 460 

 branching of, 84 

 cardiac, 450 



augmentor nerves, 458 

 centrifugal nerves, 462 

 centripetal nerves, 463 

 inhibitory nerves, 452 

 centres of the, 467-470 

 augmentor centre, 469 

 inhibitory centre, 467 

 intra-ventricular centre, 470 

 peripheral reflex centres, 470 

 division of the, 451 

 inhibitory, 452 



chemical changes in, by conduction, 96 

 chemistry of, 150 

 concerned in the reflex action of deglutition, 



314 

 conduction in both directions in, 86 



experimental methods of determining, 87 

 rate of, 90 



in motor nerves, 91 

 in sensory nerves, 92 

 conductivity of, effect of pressure upon, 93 



effect of temperature on the, 93 

 cutaneous, excitation of the, effect on the 



respiratory movements of, 571 

 effect of electric current upon, 69 



on normal human, 62 

 of sudden alterations in the intensity of 



stimuli, 46, 47 

 electro-motive force of, 139 

 extrinsic, of the intestines, 322 



to the stomach muscles, 319 

 fatigue of, by conduction, 79, 97 

 influence of the, on the gastric secretion, 180 

 inhibitory, defined, 36 

 and augmentor, Pawlow's classification, 462 

 effect of simultaneous stimulation of, 461 

 intracardiac, 440 



effects of stimulation of the, 463 

 irritability of, 38-40 

 testing auelectrotonic and katelectrotonic 



alterations of, 69, 70 

 irritation of, by electrical current, Du Bois- 



Eeymond's law, 47 



liberation of heat in, by conduction, 96 

 motor, conduction in human, 91, 92 

 defined, 36 



of the bile-vessels, 188 

 of common sensation, 843 

 of special sense, effect of stimulation of the, 



467 



of the eye, 769-772 

 of the spleen, 499 

 olfactory, excitation of the, effect of, on the 



respiratory movements, 571 

 pancreatic, 172 



phrenic, result of section of, 571 

 pneumogastric, 573 

 functions of, 568-570 

 pulmonary branches of, 573, 574 

 reaction of, to currents of gradually increas- 

 ing strength, 64 

 respiratory, afferent, 568 



efferent, 571 

 sciatic and sensory, excitation of the, effect 



of, on respiration, 571 

 secretory, 36, 162-164 



action of drugs upon the, 1?'0 

 existence of, to the liver, 188 

 of the pancreas, 173 



Nerves, sensory, defined, 36 

 of the muscles, 844, 845 

 stimulation of the, effect of, 466 

 septal, effect of vagus excitation on the, of a 



frog, 456 

 splanchnic, excitation of the, effect of, on the 



respiration, 571 

 sweat-, 199 



sympathetic, pulmonary, 574 

 temperature, 840-842 

 thermogenic, 598 

 trigeminal, excitation of the, effect on the 



respiration of, 591 

 "trophic," defined, 36 

 vagus, stimulation of the, effects of, 463 

 vaso-dilator, early demonstration of, 484 

 vaso-motor, defined, 36 

 differences between the constrictors and 



dilators of the, 487 

 early experimental demonstrations of, 482- 



486 



observation of, methods of, 486 

 origin and course of, 488 

 reflex excitation of, 492 

 topography of, 494 

 of the back, 501 

 of the bladder, 500 

 of the brain, 494 



of the external generative organs, 499 

 of the head, 496 

 of the heart, 497 



of the internal generative organs, 500 

 of the intestines, 498 

 of the kidneys, 498 

 of the limbs, 501 

 of the liver, 498 

 of the lungs, 496 

 of the muscles, 501 

 of the portal system, 501 

 of the spleen, 499 

 of the tail. 501 

 ventricular, 463 



distribution of, 440 



Nerves and muscles of cold-blooded animals, 

 effect of irritants best studied by, 39 

 Nervous system, alterations in the, due to preg- 

 nancy, 916 

 central, 605-743 



activities of the, summary of, 656 



anatomy of the, physiological, 644 



architecture of, general, 639 



asymmetry of, 723 



cells in the, number of, 731 



circulation in the, 734-737 



conditions of the, during sleep, 740 



conditions of the. favoring sleep, 739 



connections between cells in the, 643 



constituents of the, 716 



development in different parts of the, 



relative, 642 



development of the, defective, 734 

 effect of fatigue on the, 737 

 effect of loss of sleep on the, 742 

 effect of removal of cerebral hemispheres, 



705-715 



effect of starvation on the, 737 

 influence of the, 011 gastric secretion, 180 

 growth and organization, 606 

 growth of, influence of glands on the, 737 

 medullation in, 616 

 nerve-elements of the, classification of, 



641 



nerve-elements of the, increase in num- 

 ber of functional, 727 

 nerve-fibres in the, degeneration of, 634, 



669, 670 

 nerve-impulses of the, arrangement of, 621 



