444 



ISDEX. 



Nerve-fibres, inhibitory and augmentor, 



293 



,, secretory and trophic, 417 

 ,, trophic, 830 

 ,, vaso-coustrictor and vaso-di- 

 lator, 312 



,, vaso-constrictor, course of, 317 

 ,, vaso-dilator, course of, 318 

 ,, nutrition of, 853, 898 

 Nervi erigentes, vaso-dilator fibres of, 321 

 ,, ,, action of, on the rectum, 



467 

 ,, ,, action on penis, and roots 



of, iv. 371 



Nervous system, central, grey and white 



matter of, 177 



,, ,, regulation of temperature 



by the, 814, 816 

 ,, ,, metabolism governed by 



the, 829 

 ,, ,, vicarious action of, after 



partial injury, 799 

 Nervous mechanism, co-ordinating, 910, 



1009, 1019, iv. 151 

 Neurilemma, defined, 115, note 



,, structure of, 117 

 Neurin in nervous tissue, 121 

 Neuroglia, 178 



,, of white matter of cord, 859 

 ,, of grey matter of cord. 862 

 Neurokeratin in nerve medulla, 117, 123, 



860 

 Newt, chief cells of gastric glands in, 411 



,, structure of lung of, 527 

 Nicol prism described, 93 

 Nitrogen in proteids, 17 

 ,, in expired air, 551 

 ,, relations of, in the blood, 571 

 ,, free, inassimilable by living 



beings, 792 



Nitrogenous waste not increased by 

 muscle contraction, 103,106 

 ,, equilibrium, 795 

 Node of Panvier, 115 

 "Nrend vital " of Flourens, 585 

 Noises and musical sounds, iv. 223 



characters of, iv. 227 

 Nostrils, their work in inspiration, 548 

 Notch, dicrotic, in pulse tracings, 265 

 Notes, how produced vocally, iv. 315, 325 

 Nuclei of cranial nerves, 953 970 

 Nuclein, in white corpuscles, 40 

 ,, a modified proteid, 43 

 ,, a constituent of milk, 781, 785 

 ,, ,, ,, of semen, iv. 369 



,, ,, ,, of yolk, iv. 356 



Nucleus of white corpuscles, how shewn, 



39 



,, of the neurilemma, 117 

 ,, of non-medullary nerve-fibre, 120 

 ,, of a nerve-cell, 174 

 ,, caudatus, 932, 974 

 ,, lenticularis, 932 

 ,, olivary, 945 



Nucleus accessory olivary, 945 

 arcuate, 946 

 gracile, 947 

 cuneate, 947 

 amygdala;, 978 

 red, of the tegmentum, 981 



Nu 



leolus in ganglionic cells, 174 



N uuition, statistics of, 788 



,, income and output of material 



in, 791 

 ,, summary of phenomena of, 



822 



,, of muscle, 823 

 ,, ,, increased by activity, 148 



,, influences determining, 828 

 ,, nervous control of, 829, 915 

 ,, disordered, phenomena of, 831 

 ,, of nerve-fibres, 853, 898 

 of embryo, iv. 382, 395 



Odours, perception of, iv. 250 



,, discrimination of, iv. 251 

 Oedema, possible causes of, 496, 507 

 ,, inflammatory, 508 

 ,, of Blight's disease, 509 

 Oesophagus, structure of, 392 

 ,, muscles of, 393 

 ,, nerve supply to, 394 

 ,, movements of in deglutition, 



457 

 ,, force of contraction in the, 



458 



Oil, clotting of blood prevented by pre- 

 sence of, 21 

 Old age, phenomena of, iv. 410 



,, degenerations characteristic of, 



iv. 410 

 Olein, a constituent of animal fat, 772 



,, presence of, in blood, 50 

 Olfactory bulb -and tract, structure of, 



1085 



,, mucous membrane, iv. 246 

 ,, nerve-fibres, terminations of, 



iv. 248 



,, sensations, iv. 250, 251 

 ,, judgments, iv. 2f>2 

 Olivary body (inferior olive), 937 



nuclei, 942 

 Olive, upper, 982 

 Oncograph, renal, 659 

 Oncometer, renal, 657, 1135 

 Ophthalmoscope, principle of the, iv. 120 

 Optic vesicle, development of, 929, 1074 

 ,, thalamus, 930 

 ,, structure of, 971 



,, ,, its nuclei, 980 



,, pulvinar, 981 



results of removal in frog, 



1019 

 ,, lobes, results of removal in frog, 



1019 



,, chiasma, 1073 



,, nerve, its decussation in chiasma, 

 1073 



