'966 



INDEX. 



PAGE 



Nerves, motor and sensory 586 



motor, action of 591 



sensory, action of 592 



general properties of 594 



irritability of (see Nervous irritability) 594 



disappearance of the sensory properties of 596 



action of electricity upon (see Electricity) 599 



process of dying of 601 



galvanic current from the exterior to the cut sur- 

 face of . . 603 



cranial (see Cranial nerves) 608 



sympathetic (see Sympathetic) 729 



vaso-motor (see Vaso-motor nerves) 739 



development of 916 



Nervous conduction, rapidity of 597 



Nervous irritability distinct from muscular irritability 



59, 536 



description of. 594 



distinct in motor and sensory nerves 595 



influence of woorara upon 595 



process of disappearance of, in motor nerves ... 596 



momentary destruction of, by severe shock 596 



destruction of, by a powerful galvanic shock 597 



Nervous system, influence of, upon the heart 58 



influence of, upon absorption 320, 327 



influence of, upon secretion 347 



influence of, upon lactation 370, 376 



influence of, upon the secretion of sweat 393 



influence of, upon the secretion of urine 405 



origin of cholesterine in 451 



influence of, upon the glycogenic function of the 



liver 470 



influence of, upon animal heat 514 



general considerations 503 



divisions of. . . 564 



physiological anatomy of the tissue of 5(55 



anatomical divisions of 565 



development of 916 



functions of, in the foetus 919 



Nervous tissue, composition of 583 



fatty constituents of. 584 



Nervus intercostalis . . ,~ 730 



Neural canal 900, 918 



head-fold of. 900 



Neurilemma of the spinal cord. 667 



Neurine 584 



Neutrafp jint 605 



Ninth cranial nerve (see Sublinguai nerve) 632 



Nipple, sebaceous glands of 862, 366 



structure of 366 



Nitrogen, proportion of, in the air 140 



exhalation of, in respiration 154 



in the blood 160 



quantity of, necessary to nutrition 192 



in milk 375 



Nitrogenized alimentary principles 176 



digestion of 243, 267, 277 



Nitrogenized food, influence of, upon the elimination 



of urea 428 



relations of, to animal heat 518 



Nitrogenized principles, action of the gastric juice 



upon 245 



action of the intestinal juice upon 267 



action of the pancreatic juice upon 277 i 



action of, in nutrition .' . 498 | 



Nitrous oxide, effects of, when respired 141 I 



Nodes in vibrating strings 830 ' 



Non-nitrogenized alimentary principles 180 



action of the gastric juice upon 248 ! 



Non-nitrogenized alimentary principles, action of the 



intestinal juice upon 267 



relations of, to animal heat 517 



action of the pancreatic juice upon 274, 275 



Non-nitrogenized principles in the blood 21 



action of, in nutrition 500 



Non-striated muscular fibres 527 



Nose, uses of the hairs in the nostrils 390 



- development of 928 



Notocorde 914 



Nutrition, relations of respiration to 161 



quantity and variety of food necessary to 191 



general consideration 486 



action of inorganic principles in 488 



principles consumed by the organism 497 



action of nitrogenized principles in 498 



development of power and endurance by exercise 



and diet 498 



action of non-nitrogenized principles in 500 



^ modifications of, by various conditions "504 



relations of, to animal heat 516 



O'Beirne, sphincter of 297 



Obliquus externus, action of, in expiration 131 



internus, action of, in expiration 131 



(Esophagus, influence of contraction of the diaphragm 



upon 125 



structure of. 218 



glands of 218 



action of, in deglutition 224 



alternate contraction and relaxation of 224 



effects of division of the pneumogastrics u;,on. . 662 



development of 921 



Oils (see Fats) 183 



Oken, bodies of 927 



Oleine 183, 504 



Oleo-phosphoric acid 5S5 



Olfaction, mechanism of 758 



relations of, to gustation 758 



Olfactory ganglia, or bulbs 756 



Olfactory commissures and nerves, development of. . 919 



Olfactory nerves 754 



physiological anatomy of 755 



general properties of 756 



functions of 757 



Olivary bodies 724 



Olive-oil 1S3 



Omentum 2S9 



development of 921 



Omphalo-mesenteric vessels 904, 931, 932 



Ophthalmic ganglion 731 



Ophthalmoscope 791 



Opium, exaggeration of the reflex excitability of the 



spinal cord by 686 



Optic commissure 768 



Optic lobes (see Tubercula quadrigemina) 722 



Optic nerves, physiological anatomy of 767 



decussation of 722, 768 



general properties of 769 



effects of stimulation of 770 



expansion of, in the retina 777 



development of. 919 



Optic thalami, physiological anatomy of 721 



functions of 721 



development of 917 



Ora serrata of the retina 776 



Orbicularis oris, action of, in mastication 205 



Orbicularis palpebrarum 812 



Organic matter, exhalation of, by the lungs 154 



