INDEX OF SUBJECTS. 



1307 



PAGE 



Nucleus or nuclei, olivary, . . . 763 



,, of pons, 778, 779, 781, 



891, 893, 907 



red, 705, 808, 888, 893, 



907, 915 



,, sensory, of fifth 



nerve, . . 793, 885 



,, of thalamus, 769, 770, 



778, 780 



,, ,, third nerve, . 911 



,, ,, trapezium, . .763 



vagus, 54, 292, 885, 



886 



Nyctalopia, . . . 1095, 1102, 1105 

 Nystagmus, 895, 898, 902, 1089, 1102, 1205 



OCCIPITAL LOBE. See Lobe. 

 Octopus, nerves of, . . 482, 530, 532 

 ,, reflexes in, . . . . 813 

 Odours, 1252. 1254, 1257. See also 



Sensation, olfactory. 



(Esophagus, action of, in deglutition, 316, 317 

 centre for movements of, . 887 

 contraction of parts of, . 318 

 muscle fibres of, . 317, 318 

 nerves of, 320, 335, 663, 664, 665 

 pressure in, . . . 317 

 reflex inhibition of, . .318 

 ,. stimulation of, . 320, 321 



Olfactie, 1251 



Olfactometry, . 1249, 1250, 1251, 1257 

 Olfactory area. See Cerebral cortex. 



bulb, .... 1247, 1248 

 chiasma, .... 781 

 fibres, 326, 764, 788, 1247, 1248, 

 1252 



glomeruli, .... 1247 

 islands, ..... 764 

 lobe. See Lobe. 



roots, .... 764, 781 

 tracts, .... 764, 781 

 Olive .... 763, 781, 890, 893 

 Oncograph, . . . . . .162 



Oncometer, 162 



Ophiurus, autotomy in, ... 845 

 Ophthalmometer, . . 1026, 1027, 1028 

 Opisthotonos from cerebellar lesions, 897, 898 

 Optic lobes. See Lobe. 

 ,, nerve. See Nerve. 

 ,, thalamus. See Thalamus. 

 , , tract, connection with corpora geni- 



culata, . 758, 780 

 ,, ,, ,, corpora quadrigemina, 



780, 781 



,, cortex, . 758, 780, 781 

 ,, ,, ,, optic lobes, . . 915 

 ,, ,, degeneration of, after exci- 

 sion of eye, . . . 781 

 ,, ,, section of, . . . . 780 



Optical axis. See Eye. 



Optogram, ...... 1045 



Orang, motor area of, . . . . 745 



Orbital gland, .... 660, 661 



Organs of lateral line, . . . 1167, 1168 

 Orthoform, effect of, on sensation, 928, 987 

 Os uteri during parturition, . . 350, 351 

 Osmatic animals, ..... 763 



Ossicles, auditory. See Ear. 



Otic ganglion, . . . 661, 664, 1157 



Otoliths, . . . 1166, 1167, 1205 



PAGE 



Otter, vena cava of, . . .72 



Ovary, afferent fibres from, . . . 849 

 Owl, ablation of cortex in, . . . 701 



,, connection between retina and op- 

 tic lobe in, .... 915 



eye of, 1040 



PACINIAN CORPUSCLES, . 686, 924, 1007, 

 1008, 1009, 1010 



Pain centre, 997 



,, conduction-path of. See Sensation 



of pain. 



,, nerves, . 988, 989, 990, 994, 996 



,, referred, ..... 849 

 ,, ,, skin areas of, . 689,690,691 

 ,, ,, in visceral disease, . 686, 688, 



689, 690 



, , sensation of. See Sensation. 

 ,, spots, . . 921, 923, 984, 985, 987, 

 988, 989, 995, 1000 

 Palate, gustatory function of, . . 1237 



Pallium, 765 



Palpebral fissure, . . . 619, 656, 681 



Pancreas, autonomic nerve-supply of, . 692 



,, centre for secretion of, . . 887 



, , secretory nerves of, . . 663 



See also Vol. 1. 



,, vagus fibres to, . . . 854 

 ,, vasomotors of, . 164,644.645 

 Papilla acustica, . . . 1167, 'l!68 



Papillae, gustatory. See Tongue. 

 Papillary muscles, . .7, 10, 23 



Paradoxical contraction, . . . 548 



Parasthenia, 903 



Paratonia, 903 



Parelectronomy, ..... 423 



Parietal lobe. See Lobe. 



Parieto - occipito - temporal association 



area, 771 



Parturition, 349. See also Uterus. 



, , action of abdominal muscles 



in, 351 



,, cause of onset of, . . 350 



centre, . . 351, 851, 852 



effect of lesions of cord on, 351, 



812, 851, 852 



,, influence of foetus on, 350,351 



,, nervous mechanism of, . 351 



,, stages of, . . . . 351 



,, uterine contractions in, 350,351 



Peduncles of cerebellum. See Cerebel- 

 lum. 



,, corpus albicans, . . . 782 

 ,, ,, callosum, . .764 



Pedunculo-maxillary fasciculus, . . 782 

 Pelvic nerve. See Nerve. 



,, plexus, 636, 646, 647, 651, 667, 668 

 Pendulum-movements, 269, 328, 329, 330 

 Penis, erection of, 347. See also Erec- 

 tion. 



,, ligature of veins of, . . . 347 



,, nerves of, . 160, 348, 636, 659, 667 



,, retractor muscle of, 635, 636, 667, 674 



Perception of breadth, . 1133,1137,1138 



distance, absolute, 1133, 1134, 



1136, 1137 



,, ,. influence of accom- 



modation 



on, 1135, 



1137, 1138 



