INDEX. 



8/9 



NERVKS. 



Nerves cow United. 



functions of, 166 



funiculi of, 101 



grey matter, 98 



inhibitory, 164 



intercentral, 166 



intracardiac, 253 



irritability of, 105 



laws of conduction, 164 etseq. 



medullary sheath, 99 



medulla ted, 98 



motor, 164 

 termination of, 102 



nodes of Ranvier, 99 



non-medullatfd, 98 



olfactory, 625, 7 1 1 



physiology of, 163 et seq. 



plexuses of, 102 



reflex actions, 165, 196 



secretory, 164 



section of, 166, 474 



size of, 101 



spinal. See Spinal Nerves. 



splanchnic, stimulation of, 357 



stimulation of cut, 166, 357, 475 



structure, 98 



sympathetic, influence on heart, 249 



taste, 707 



terminations of, 

 in corpuscles of Golgi, 699 

 in corpuscles of Grandry, 698 

 in corpuscles of Herbst, 695 

 in end-bulbs, ib. 

 in motorial end-plates, 102 

 in networks or plexuses, 699 

 in I'arinian corpuscles, 694 

 in touch-corpuscles, 696 



trophic, 164, 774 

 Nervous circles, 652, 665 

 Nervous system, 



cercbro-spinal, 189, 602 



development, 841 et seq. 



influence on the heart, 368 



sympathetic, 249 



vaso-motor, 290 et seq. 

 Nervous tissue?, chemistry of, 174 

 Neural crest, 844 

 Neuroblaats, 842 

 Neuroglia, 190, 606 

 Neurokeratin, 99, 191, 401 

 Neuro-muscuiar spindles, 93, 698, 699 

 Nicotine, action of, 301, 335, 475 

 Nissl's granules, 193 et eq. 



significance of, 200 

 Nitric oxide hemoglobin, 436 

 Nitrogen in the blood, 377 



eliminated in the form of urea, 



455 



Nodal point, 7:55 

 Nodes of Ranvier, 99 

 Nose. See Smell. 



development of, 850 

 Notochord, 810, 824 



OSTEOBLASTB. 



Nuclear layers, 750, 751 



sap or matrix, 10 

 Nucleic acid, 400 

 Nuclein, n, 400, 401, 459 

 Nuclei pontis, 636 

 Nucleoh, 10 

 Nucleo-proteids, 400 

 Nucleus of animal cell, 6, 10 el seq. 



chemical composition, 1 1 



division, 16 



staining of, 10 



structure, ib. 

 Nucleus ambiguus, 628, 635 



0. 



Odontoblasts, 74, 76, 78, 79 

 Odontogen, 79 

 Odours, 713. See Smell. 

 (Esophagus, development, 851 



structure of, 440 

 Oleaginous principles, 390 

 Oleic acid, 391 

 Olein, 49, 390 

 Olfactory bulb, 712 



cells, 711 



nerves, 625, 711 



tract, 711 



"roots'* of, ib. 

 Olivary body, 624, 635 

 Oliver's hsemacytometer, 422 

 Omphalo-meseuteric veins, 819, 830 

 Oncograph, Roy's, 311 

 Oncometer, 540 



Roy's. 3">, S 2 ^ 

 Ophthalmoscope, 770 et seq. 

 Optic disc, 749 

 Optic nerve, 625 



deciwsation of fibres in, 786 



development of, 848 

 Optic thalamus, 644 



vesicle, primary, 844 

 Optical angle, 757 



apparatus of eye, 755 



defects in, 763 

 Optogram, 780 



Ora serrata of retina, 748, 754 

 Orang's brain, 654 

 Organ of Corti, 720 



of Giraldes, 859 



Organic compounds in body, 384 

 Organised ferments, 404 

 Osmosis, 317, 516 



distinguished from diffusion, 394 

 Osmotic pressure, method of estimating, 



n 543, 544 



Otwem, 401 



Osseous labyrinth, 717. See KM. 



Ossicles of the ear, 7 1 5 



action of, 723 



Ossification, stages of. 64 et seq. 

 Ostcoblaats, 64, 68 



