578 INDEX 



Ear middle, 368 



Efferent (ex, out of ; fero. I bear) impulses, course of, 488 

 nerves defined, 476 



degeneration of, 474 



muscular fibre contracts by means of, 340 



Elasticity of artery walls, 32, 34, 56, 62 



cartilage, 547 



lungs, 137, 165 



Elbow joint, 320, 322 



Electrical fishes, efferent nerves of, 476 



properties of a nerve, 478 

 Elements present in liumaii body, 562 

 Embryo, growth of muscle in, 295 



red corpuscles nucleated In, 102 

 Embryonic form of all tissues, 536 

 Emotions, various, 342 



eflfect of, on the heart, 73 



on perspiration, 201 

 on the vaso-motor system, 66 

 painful, tears a consequence of, 417 

 Emulsification of fats, 263 

 Emulsion of fats, 260, 263 

 Enamel of teeth, 233, 234 

 End-bulb of nerve-fibre. 190, 348, 350 

 End-organs, central, of special sensations, 386, 526 

 Endocardium (ti/fioK, within ; xapSCa, the heart), 45 

 Endolymph ('ii'Sov, witliin ; li/mpha, water) contained in ear sac, 372 



vibrations of, 382 

 Energy (cV, in ; (pyov, work) supplied by oxidation, 7, 25, 224 



income and expenditure of, 281 

 Enzymes, 243 



Epidermis (en-i, upon ; Sfpna. skin), 12, 190 

 breadth of superdcial cells of, 545 

 cells of, converted into horn, 192 

 continuous with epithelium, 12, 545 

 an execretory organ, 196 

 growth of, 542 

 non- vascular, 31 



its relation to the derma, 543, 544 

 scales of, continually shed, 541 

 structure of, 540, 543 

 Epiglottis (eTT-i, upon ; yAoiTra, a tongue), 129, 227 

 Epithelial tissue, 539 

 Epithelioid cells, 89 

 Epithelium (eTrt, upon ; floAAw, I grow) 

 auditory, 378 

 cells of, mcessantly reproduced, 27 



nucleated, 542, 545 

 ciliated, 286 



in nasal mucous membrane, 365 

 epidermis, continued into, 12 

 modified in sense organs, 345 

 of mucous membrane, 545 

 non-vascular, 31, 544 

 olfactory, 365, 36C 

 of the retina, 424 

 of serous cavities, 546 



