882 



INDEX. 



REFLEX ACTIONS. 



Reflex actions, 657 



inhibition of, 660 



in frog, 660, 668 



in man, 66 1 

 superficial, 662 

 tendon, ib. 



of nerves, 165, 196 



of spinal cord, 659 et seq. 

 Refraction, laws of, 755 

 Refractive media of eye, ib. 

 Regions of body. See "Frontispiece. 

 Reid, Waymouth, experiments on the 



absorption of secretions from the 



intestines, 516 

 Remak, fibres of, 102 



ganglion of, 254 

 Renal circulation, 212 



epithelium, activity of, 541 



oncometer, 540 

 Bennet, 459 



Reproductive organs, 792 et seq. 

 Requisites of diet, 585 

 Reserve air, 354 

 Residual air, ib. 

 Respiration, 337 



abdominal type, 350 



alteration in atmospheric pressure, 

 372 



breathing or tidal air, 354 



chemistry of, 373 



effect on circulation, 363 



gases in relation to, 371, 377 



influence of nervous system, 368 



mechanism of, 346 et seq. 

 nervous, 357 



movements, 346 

 of vocal cords in, 734 



quantity of air changed, 354 

 Respiratory acts, special, 361 



apparatus, 338 



development of, 854 



capacity of chest, 354 

 circumstances affecting, 355 



movements of glottis, 353 

 methods of recording, 350 



muscles, 347 et seq. 



nerve-centre, 357 



rate, 355 



relation to pulse rate, w. 

 size of animal, ib. 



relation to will, 357 et seq. 



rhythm, 353 



sounds, to. 



Restiform bodies, 635, 638 

 Rete testis, 796 

 Reticulum, 8 

 Retiform tissue, 50 

 Retina, 748 



blind spot, 768 



blood-vessels, 754 



changes in, during activity, 780 



duration of impression on, 770 

 of after -sensations, ib. 



SAPOMFICATIOX. 



Retina continued. 

 electrical variations in, 781 

 excitation of, 768 

 focal distance of, 759 

 fovea centralis, 748 

 functions of, 768 

 image on, how formed distinctly, 



, 757 



layers, 749 



ora serrata, 748 



pigment-cells, 106, 107, 753 

 movement of, 781 



pigments of, 780 



in relation to single vision, 782 



structure of, 748 



visual purple, 752, 780 

 Retractor lentis muscle, 763 

 Rheochord, 176 



Poggendorf's, 177 

 Rheoscope, physiological, 152, 162 

 Rheoscopic frog, 152 

 Rheotome, 146 



Rhodopsin or visual purple, 780 

 Rhythmicality of movement, 107, 161 

 Rigor mortis, 157, 159 



affects all classes of muscles, 157, 163 



phenomena and causes of, 163 

 Ritter's tetanus, 184 

 Rods and cones, 752, 768, 781 

 Rolandic area, 671, 674, 679 



injury of, 671 

 Roy's cardiometer, 247 



oncograph, 311 



oncometer, 310, 326 



tonometer, 259 

 Rumination, 519 



8. 



Saccharic acid, 387 

 Saccharoses, 386 



St. Martin, Alexis, case of, 479, 522 

 Saccule, 719 



Salathe, effect of gravity on the circula- 

 tion, 293 

 Saliva, 471 



action of, 478 



composition, 477 



process of secretion, ib. 



reflex secretion, ib. 



secretion following stimulation of 



nerves, 308, 475 et seq. 

 Salivary glands, 471 



development of, 853 



extirpation of, 477 



influence of nervous system, 475 



secretory nerves of, 474 

 effect of section of, io. 



structure, 471 



Sanderson's cardiograph, 240 

 Sanson's images, 760 

 Saponification, 392, 489 



