458 



INDEX 



Nerve cells, function of, 85 



centres (see Centres) 



corpuscles, 75 



fibres, 75 



fibres, medullary sheaths of, 75 



fibres, non-medullated, 75 



specific energy of, 118 

 Nerves, 73 et seq. 



afferent, 82 



auditory, 144 ; cochlear root of, 

 144 ; vestibular root of, 144 



augmentor, 82 



efferent, 82 



excito-motor, 83 



excito-reflex, 83 



exoito-secretory, 83 



factors modifying conduction in, 

 81 



inhibitory, 82 



mixed, 83 



motor, 82 



nature of impulse in, 84 



physiology of, 77 



rate of conduction in, 80 



secretory, 82 



sensory, 83 



spinal (see Spinal nerves) 



vaso-con stricter, 82, 280 



vaso-dilator, 280 



Nervi erigeutes, 155, 281, 376, 427 

 Nervous mechanism, iiitra-cardiac, 252 



system, 156 et seq. 

 Neural canal, 435 

 Neurilemma, 75 

 Neuroglia, 436 

 Neuro-keratin, 76 

 Neuro-muscular mechanism, 87 et seq. 



fatigue of, 99 

 Neurons, 436 



classification of, 81 



excitability of, 78 



extent of excitability of, 83 



ingoing, 79 



manifestation of activity of, 78 



outgoing, 79 



stimulation of, 78 

 Neutral sulphur in urine, 420 

 Nicotine, effect of painting ganglia 



with, 152, 347 

 Nictitating membrane, 120 

 Ninth nerve, 155, 172 

 Nissl's degeneration, 86 



granules, 75, 85, 189 

 Nitrites, effect on blood pressure, 277 

 Nitrogen in the blood, 216 



in the urine, 415 et seq. 

 Nodal swellings, 17 

 Nodes of Ranvier, 76 

 Nuclei of the cranial nerves, 171 



of the posterior columns, 88 



Nucleins, 11 



Nucleo-protein in the urine, 422 

 Nucleolus, 16 

 Nucleo-proteins, 369 



action of gastric juice on, 352 



action of trypsin on, 362 

 Nu -leus, 16 et seq. 



cuneatus, 168 



gracilis, 168 



OCCIPITAL lobe, 193 

 Oculomotor nerve, 136, 172 

 (Esophagus, 338 



application of a stethoscope to, 348 



peristaltic action of, 348 

 (Estrous cycle, 433 

 Oleic acid, 29 

 Olein, 29, 333 

 Olfactory bulb, 116 



tracts, 116 

 Olive, the, 167 

 Omasum, 340 

 Ophthalmoscope, 122 

 Opsonins, 413 

 Optic chiasma, 137 



disc, 120 



nerve, 120 



radiation, 193 



thalamus (see Tlialamus) 

 Organ of Corti, 143 

 Organic acids as salts in food, 327 

 Organs of Golgi, 107 

 Osazones, 330 

 Osmosis, 380 

 Osmotic pressure, 210 

 Ossification, process of, 32 et seq. 



centre of, 34 

 Otic ganglion, 347 

 Ovary, 408, 432 

 Ovum, 433 

 Oxalates, 204 

 Oxalic acid, 422, 445 

 Oxy -acids, 445 

 Oxygen in blood, 215 

 Oxyhsemoglobin, 210 

 Oxyntic cells, 339 

 Oxyphil leucocytes, 297 



PACES of horse, 100 

 Pain, sensation of, 106 

 Palmitic acid, 29 

 Palmitin, 29, 333 

 Pancreas, 343, 410 



removal of, 388, 410 

 Pancreatic secretion, 361 



secretion, action of, 361 



secretion, character of, 361 



physiology of, 364 

 Papillary muscles, 229 

 Paracasein, calcic, 333, 352 



