INDEX 



1267 



Ritter- Valli law, 274 



Rodsof Corti, 510 



Rolandic fissure, 419 



Roof nuclei of cerebellum, 383, 402 



Rubro-spinal tract, 353, 389 



Ruffird's organs, 497 



SACCHARIC acid, 62 



Saccharose, 67 



Saccule, 515 



Saccus endolymphaticus, 604 



Sacral autonomic fibres, 473 



Salicylic acid, 50 



Saliva, composition of, 661 



energy involved in secretion, 674 

 secretion of, 663 



effect of nerves on, 666 

 Salivary secretion, energy changes in, 



674 



effect of metabolites, 675 

 histological changes in, 670 

 pressure, 668 

 theories of, 668 

 Salivary digestion, 662 



in stomach, 663 

 glands, innervation of, 665 



changes accompanying secre- 

 tion, 668-673 

 double nerve-supply, 673 

 electrical changes in, during 



secretion, 672 

 Salmin, composition of, 91 

 Salt hunger, 647 



solutions, absorbability of, 738 

 Salts, absorption of, 753 

 Saponification, 46, 56 



number, 56 

 Sarcolactic acid, 215 

 Sarcolemma, 179 

 Sarcomere, 179 

 Sarcoplasm, 179 

 Sarcosine, 84 

 Sarcostyles, 179, 181 

 Sarcous elements, 181 

 Sartorius of frog, 183 

 Scala media, 515 

 Scatol, fate of, 770 



Schdfer's theory of contraction, 182, 236 

 Schemer's experiment, 589 

 Schematic eye, 532 

 Schlemm, canal of, 543 



functions, 596 

 Schwanri's sheath, 251 

 Scleroproteins, 106 

 Sclerotic coat of eye, 542 

 Scratch reflex, 332, 343 

 Sebaceous glands, 1162 

 Sebum, 1162 

 Second wind, 1008 

 Secondary contraction, 233 

 Secretin, 709, 1179 



action on intestinal secretion, 720 



liver, 716 



Secretion, energy changes in, 674 

 Semicircular canals, 399, 515 



destruction of, 606 

 functions, 605 

 Semilunar ganglion, 466 



valves, structure of, 893 

 Semi -permeable cell, 125 



membranes, 125, 132 



Sensation, extent of stimulus, 482 

 localisation of, 481 

 modality of, 479 

 physiology of, 478-609 

 projection of, 481 

 quantitative study of, 482-485 

 relation to stimulus, 478485 

 Sensations, organic, 598-f><>!) 

 Smsori -motor areas, 444 

 Sensory adaptation, 482 

 aphasia, 454 

 areas of cortex, 444 

 association, 451 

 paralysis, 346 

 path, 357 



Septo-marginal bundle, 354 

 Serine, 81, 91 



Serous salivary glands, 663 

 Sertoli, cells of, 1221 

 Serum-albumin, 98, 865 



composition of, 91 

 crystallisation of, 73 

 Serum-globulin, 98, 866 

 Serum-proteins, osmotic pressure of, 143 

 Seventh nerve, nucleus of, 379, 381, 413 



visceral fibres, 472 



Sexual organs, relation to ductless glands,1219 

 process, essential features of, 1199-1211 

 Sham feeding, 690 

 Shock, 306 



spinal, 330 

 Short ciliary nerves, 552 



sight, 535 



Sibilant consonants, 527 

 Side-chain theory, 1034 

 Side wire, Helmholtz, 189 

 Simultaneous contrast, 583 

 Sino -auricular node, 951 

 Sixth nerve, nucleus of, 379, 411 

 Size, illusions of, 591 

 judgment of, 590 

 Skin, absorption by, 1165 

 functions of, 1161-1166 

 gaseous exchanges in, 1165 

 structure of, 1161 



Small intestine, absorption from, 733 

 innervation of, 728 

 lymph production in, 735 

 movements in, 725729 

 Smell, sense of, 501 



sensations, 498, 502 

 Smooth muscle, see Plain muscle 

 Soaps, 46, 55 



in digestion, 742 

 Sodium, 43 

 Solar plexus, 468 

 Solidity, judgment of, 593 

 Sols, 139 



Solubility of gas, effect of pressure on, 1057 

 Solute, 131 



Somatic nervous system, 466 

 Sorbite, 62 

 Sound, nature of, 505 

 pitch of, 506 

 timbre, 506 

 Spaces of Fontana, 543 

 Spastic gait, 335, 450 



paraplegia, 335, 450 

 Sp3cific dynamic action of proteins, 636, 



764, 803 

 irritability, law of, 255 



