INDEX 



897 



SENSORY NERVE-ENDINGS IN MUSCLE. 



Sensory nerve-endings in muscle, 722 

 Serous membranes, 206, 471 

 Serum, 



albumin, 399, 416 



of blood, 413, 414 



globulin, 416 



Seventh cerebral nerve, 628, 641 

 Sex, influence on respiratory capacity, 359 

 Sexual organs in the female, 821 



in the male, 816 

 Sherrington, reciprocal action of antagonistic 



muscles, 673 

 Side-chain theory, 442 

 Sighing, mechanism of, 365 

 Sight. See Vision. 

 Simple tubular glands, 472 

 Sinus pocularis, 875 



uro-genitalis, 876 



venosus, 852 

 Sinuses of Valsalva, 213 

 Sixth cerebral nerve, 628, 640 

 Skeletal muscles, 79 

 Skeleton. See Frontispiece. 

 Skin, 574 



absorption by, 579 



dermis, 576 



epidermis of, 574 



functions of, 579 



papillae of, 576 



respiration, 579 



rete mucosum of, 574 



sebaceous glands of, 578 



secretions, 579 



sensory nerves of, 361 



sweat, 579 



sweat-glands, 578 



varnishing the, 582 

 Sleep, 697 



Small intestine, 451 et seq. Sec Intestines. 

 Smell, sense of, 730 (see 690) 



anatomy of regions, 734 



delicacy of sense of, 737 



tests for, 736 



varies in different animals, 734 

 Smith, Lorrain, carbonic oxide method of esti- 

 mating oxygen tension of arterial blood, 382 



experiments on quantity of the blood, 411 

 Smith's perimeter. Priestly, 795 

 Sneezing, mechanism of, 365 

 Snoring, mechanism of, ib. 

 Soap, 395 

 Sobbing, 365 



Sodium chloride method, 402 

 Solitary glands. See Peyer's patches. 

 Solutions, gramme-molecular, 322 

 Somatic mesoblast, 836 

 Somatopleur, 832, 833 

 Somites, mesoblastic, 833, 834 

 Sonorous vibrations, how communicated in ear, 

 745 et seq. 



in air and in water, 746. See Sound. 

 Soret's band, 435 

 Sound, 



conduction by ear, 746 



heart, 234 



production of, 758 

 Soup, value as food, 469 

 Spaces of Fontana, 770 

 Speaking, mechanism of, 760 

 Special senses, 719 et seq. 

 Spectroscope, 432 et seq. 

 Speech, 751, 760 



centre, 688 



defects of, 761 (see 689) 

 Spermatids, 818 

 Spermatocysts, SIS 



STARVATION. 



Spermatogonia, 817 

 Spermatozoa, 819 



form and structure of, ib. 

 Spherical aberration, 7S6 



correction of, ib. 

 Sphincter ani. See Defaecation. 



pupillae, 769 

 Sphygmographs, 288, 289 



tracings, 289 et seq. 



Sphygmometer, Hill and Barnard's, 292 

 Sphygmoscope, Anderson Stuart's, 268 

 Spinal accessory nerve, 629, 645 



functions of, 646 



origin, ib. 

 Spinal cord, 608 



canal of, ib. 



centres in, 676 



columns of, 609 



commissures of, 608 



conduction of impressions ly, 667 et seq. 



course of fibres in, 613 



development of, 859 



fissures and furrows of, 608 



functions of, 667 et seq. 

 of columns, 615 



grey matter, 191, 610 

 cells in, 610 



hemisection, 619, 667 



injuries of, 667, 670 



membranes of, 606 



morbid irritability of, 673 



nerves of, 613 



reflex action of, 669 et seq. 

 inhibition of, 670 

 in frog, ib., 678 

 in man, 671 

 superficial, ib. 



regions of, 619 



special centres in, 676 



structure of, 608 et seq. 



tracts, 611, 615, 667, 668 



transverse section of, 618 



white matter, 191, 609 



tracts in, 611 

 Spinal nerves, 168 



functions of roots of, 168 



origin of, 168 et seq. 



physiology of, 168 

 pindle-sh 



Spindle-shaped cells, 490 

 Spirem, 17 

 Spirometer, 358 

 Splanchnic mesoblast, 836 

 Splanchnopleur, 833 

 Spleen, 329 



apparatus for splenic curves, 152 



development, 870 



functions, 331 



influence of nervous system upon, 332 



Malpighian corpuscles of, 331 



pulp, 330 



structure of, 329 



trabeculse of, ib. 

 Spongioblasts, 772, 859 

 Spongioplasm, 9 

 Spot, germinal, 825 

 Spring myograph, 114 

 Staircase phenomenon, 117, 159, 255 

 Stannius' experiment, 255 

 Stapedius muscle, 740, 748 

 Stapes, 740 



development of, 848 

 Starch, 392 

 Starling, on swaying or pendulum movement of 



intestines, 533 

 Starvation, 589 



effects of, 590 



