1262 INDEX 



Myelocytes, 816 

 Mylohyoid of frog, 184 

 Myogen, 213 



fibrin, 213 



Myogenic movements of intestine, 726 

 Myohaematin, 213 

 Myopia, 535 

 Myosin, 98, 213 

 Myosin fibrin, 213 

 Myosinogen, 212 

 Myristic acid, 54 

 Myxoedema, 1187 



NASAL consonants, 527 

 Near point, 539, 546 

 Nectocysts, 33 

 Negative after-image, 572 



polarisation of nerve, 280 

 variation, 233 

 ventilation, 1091 

 Negativity, 229 

 Neopallium, 417 



evolution of, 419 

 Nerve, core model, 281 



double conduction, 250 



electrotonic current, 280 



electrotonus, 265 



endoneurium, 252 



excitability, 'characteristic' of, 263, 



271 



effect of temperature on, 273 

 fatigue in, 259, 285 

 galvanic excitation, 262 

 human, stimulation, 268 

 law of forward direction in, 310 

 negative polarisation, 282 

 neurilemma, 252 

 nodes of Ranvier, 252 

 non-medullated, 252 

 polarisation in, 280 

 positive polarisation, 282 

 primitive sheath, 251 

 unipolar excitation, 268 

 Nerve-axon, 251 

 Nerve-block, 266 

 Nerve-cell, automaticity of, 314 

 functions of, 312 

 Golgi net, 301, 309 

 NissVs granules, 300 

 pericellular network, 308 

 structure of, 300 

 Nerve-centres in medulla, 393 

 Nerve-current, Macdonald's theory, 173 

 Nerve fibres, 250-287 



excitation of, 262 

 size of, 252 



Nerve fibres, structure, 250 

 Nerve-impulse, 253 



conditions affecting, 258 

 effect of temperature on, 258 

 electrical changes accompanying, 



256 



influence of drugs on, 260 

 velocity of, 253 

 Nerve-injury, effect of, 274 

 Nerve-trunk, composition of, 327 

 Nerves, cranial, 410 



nuclei of, 378, 410-415 

 grafting of, 255 



Nervi erigentes, functions of, 473, 996, 1154, 

 1158, 1228 



Nervous system, evolution of, 288-296 

 ganglia, 293 

 of medusa, 290 

 of vertebrates, 297 

 Neural canal, 297 

 Neurilemma, 251 

 Neurine, 57 

 Neuroblasts, 298 

 Neuro-fibrillar network, 428 

 Neuro-fibrils, 296 



continuity of, 307 

 Neuroglia, 297 

 Neurokeratins, 107, 251 

 Neuro-muscular junction, 183, 275 



spindles, 601 



Neuron, definition of, 295, 301 

 Neurons, continuity of, 296 



structure, 296 

 Neuropilem, 296 

 Neutrophile leucocytes, 813 

 Nicol's prism, 51 



Nicotine, effect on end-plates, 277 

 on heart, 974 



method, 472 



Ninth nerve, nucleus of, 379, 414 

 Nissl's granules, 301 

 Nitrates, 40 



Nitrification of sewage, 40 

 Nitrifying organisms, 40 

 Nitrogen, 39 



endogenous, in urine, 758 



estimation of by KjddahVs method, 

 1126 



excretion in starvation, 629, 633 



exogenous, in urine, 758 



in food, 614 . 



output, 756 



requirements of body, 633 



source of, 39 

 Nitrogenous constituents of urine, 757 



equilibrium, 616, 631, 653 

 Nociceptive stimuli, 341 

 Nodal point, 531, 533 

 Nceud vital, 1077 

 Non-polarisable electrodes, 224 

 Normoblasts, 834 

 Nuclear sap, 17 

 Nucleic acid, 101 

 Nuclein, 97, 101 



hydrolysis of, 774 



metabolism of, 774-782 

 Nucleins, fate of, 777 



formation in body, 777 

 Nucleolus, 16 

 Nucleoplasm, 17 



Nucleoprotein, decomposition of, 102 

 Nucleoprotein. digestion of, 104 

 Nucleus, 14, 27, 31 



ambiguus, 379 



of Bechterew, 381, 402 



branched, 31 



caudatus, 363 



cuneatus, 367 



emboliformis, 373 



effect of removal, 28 



fastigii, 373 



function of, 27 



globosus, 373 



gracilis, 367 



lenticularis, 363 



necessity for growth, 30 



