1412 



INDEX 



Nervi erigentes, functions of, 528, 1121, 



1292, 1295, 1374 



Nervous system, evolution of, 324-333 

 ganglia, 329 

 of medusa, 326 

 of vertebrates, 334 

 Neural canal, 334 

 Neurilemma, 281 

 Neurine, 63 

 Neuroblasts, 335 

 Neuro-fibrillar network, 484 

 Neuro-fibrils, 333 



continuity of, 347 

 Neuroglia, 334 

 Neurokeratins, 119, 281 

 Neuro- muscular junction, 204, 310 



spindles, 672 



Neuron, definition of, 332, 338 

 Neurons, continuity of, 332 



structure, 333 

 Neuropilem, 333 

 Neutrophile leucocytes, 918 

 Nicol's prism, 56 



Nicotine, effect on end- plates, 312 

 on heart, 1062, 1092 



method, 527 



Ninth nerve, nucleus of, 426, 467 

 Nissl's granules, 337 

 Nitrates, 43 



Nitrification of sewage, 43 

 Nitrifying organisms, 43 

 Nitrogen, 42 



in food, 686 



excretion in starvation, 704, 708 



estimation of by KjcldahTs method, 

 1258 



endogenous, in urine, 856 



exogenous, in urine, 856 



output, 854 



requirements of body, 708 



source of, 42 

 Nitrogenous constituents of urine, 855 



equilibrium, 688, 706, 732 

 Nociceptive stimuli, 386 

 Nodal point, 590, 593 

 Nceud vital, 1201 

 Non-polarisable electrodes, 251 

 Normoblasts, 942 

 Nuclear sap, 17 

 Nucleic acid, 112, 113 

 Nuclein, 107, 112 



hydrolysis of, 874 



metabolism of, 874-883 

 Nucleins, fate of, 877 



formation in body, 877 

 Nucleolus, 17 

 Nucleoplasm, 17 

 Nucleoprotein, decomposition of, 113 



digestion of, 116 

 Nucleus, 14, 29, 33 



ambiguus, 427 



of Bechterew, 429, 454 



branched, 33 



caudatus, 410 



cuneatus, 413 



emboliformis, 420 



effect of removal, 31 



Nucleus, fastigii, 420 



function of, 29 



globosus, 420 



gracilis, 413 



lenticularis, 410 



necessity for growth, 33 



of Luys, 425 



of Rolando, 413 



relation to cytoplasm, 29 



structure of, 16 

 Nutrition, mechanisms of, 685, 914 



OCCIPITAL lobe, 473 



Occipito-frontal fasciculus, 481 



Oculo-motor nucleus, 426, 460, 463 



Oecoid, 925 



(Esophagus, inhibition of, in swallowing 



762 



(Estrus, 1371 



Ohm's law of auditory analysis, 568 

 Oleic acid, 60, 61 

 Oleyl- lecithin, 63 

 Olfactie, 561 

 Olfactometer, 561 

 Olfactory apparatus, 475 



area, 506 



bulb, 476 



glomeruli, 476 



lobe, 473, 506 



mucous membrane, 559 



sensations, 555, 560 



tract, 476 



tubercle, 476 



Olivary body, 413, 415, 431 

 Olive, 413, 415, 431 

 Olivo-cerebellar fibres, 438 

 Olivo- spinal tract, 399, 440 

 Oncometer, 1117 

 Optic axis, 590 



chiasma. 436, 459 



disc, 625 



nerve, decussation, 436, 459 

 efferent fibres in, 625 



radiation, 478, 479 



thalamus, 410, 423, 431, 444, 475 

 nuclei of, 424 



tracts, 436, 459, 504 

 Optical activity, 56 



axis of lens, 588 



centre of lens, 588 



defects in eye, 594 



isomers, action of ferments on, 186 

 Optimum temperature for ferments, 178 

 Opsonic index, 1160 

 Opsonins, 1160 

 Ophthalmometer, 602 

 Ophthalmoscope, 617-619 

 OptogramS, 629 

 Ora serrata, 626 



Orcin reaction for pentoses, 66, 104 

 Organ of Corti, 574 

 Organic compounds in body, 49 

 Organic sensations, 669-681 

 Organic synthesis, mechanism of, 121 

 Organisation, 7 

 Ornithine, 87, 92 



decarboxylation of, 173 



