1592 



INDEX. 



Tissues, contractile, 54-168 

 nervous, 169-185 

 vascular, 186-352 

 ,, digestive, 355525 

 ,, respiratory, 526-631 

 relative proportions of, in the 



body, 789 



,, metabolism of, 822 

 ,, their death gradual, 1556 

 Tone, arterial, 308 



,, dependent on vaso-motor action, 



319, 327 



,, centre for, in medulla, 323 

 ,, intrinsic nature of, 329 

 , , maintained by automatic action 



of cord, 922 



,, of skeletal muscles, 922 

 ,, ,, due to central nervous 



system, 923 

 Tones, musical, fundamental and partial, 



1362 

 Tongue, papillae of, 1393 



,, localization of taste sensations 



in, 1400 



Torcular Herophili, 1133 

 Tortoise, persistence of ventricular beat 



in, 285 

 ,, heart-beat in, independent of 



cardiac nerves, 288 

 ,, ,, action of atropin on, 301 



Touch-cells, in epidermis and elsewhere, 



1411 

 Touch-corpuscles, structure of, 1408 



,, distribution of, 1409 



Trabecuke of lymphatic glands, 492 



,, of spleen, 735 

 Trachea, structure of, 530 

 ,, nerve supply to, 534 

 ,, effect on respiration of its 



closure, 593 

 Tract, optic, course of, 1074 



,, ascending antero-lateral, 874, 895 



,, descending antero-lateral, 873 



cerebellar, 874, 890, 950 



,, ,, as to functions of, 1102 



median posterior, 874, 891 



,, ,, ,, as to functions 



of, 1103 

 ,, pyramidal, crossed, 872, 888 



direct, 873, 889 



,, ,, relations to volition, 



1044, 1056, 1059 



Tracts, afferent, in spinal cord, 1094 

 ,, intern unical, for afferent impulses, 



1104 

 Training, effect of in brain action, 



1069 



Transudation into lymph-spaces, 503 

 not merely a nitration, 504 

 ,, conditions determining, 505 

 ,, opposite currents of, through 



capillary walls, 506, 520 

 Trapezium, 960 

 Traube-Hering curves, their origin, 622 



Traube-Hering undulations in kidney, 



660 



,, variations in cerebral blood- 

 pressure, 1136, 1137 

 Tricuspid valves, 230 

 Trypsin, a constituent of pancreatic juice, 



414, 426 



,, in the foetal pancreas, 1527 

 Trypsinogen, an antecedent of trypsin, 



414 



Tube, Fallopian, 1489 

 Tuberculum acusticum, 959 

 Tubules, seminal, course of, 1503 

 ,, ,, structure of, 1504 



,, uriniferous, structure of, 634, 



641 



,, ,, convolutions of, 636 



,, ,, epithelium of the, 665 



,, ,, work of the, 671 



,, ,, special substances ex- 



creted by, 666 



Tubuli serniniferi, see Tubules, seminal 

 Tunicsa, intima, media and extima of 



arteries, 193 



Tunica muscularis mucosse, 378 

 ,, albuginea, 1503 

 vaginalis, 1503 



Tuning-fork for the measurement of velo- 

 city, 70 

 Tympanum of ear, 1317 



,, conduction of sound through, 



1319, 1328 



,, structure and relations, 1320 

 ,, membrane of, 1323 

 ,, muscles of the, 1332 

 ,, its connection with sense of 

 outwardness of sounds, 

 1380 



Tyrosin, a product of pancreatic diges- 

 tion, 427 



,, chemical composition, 428 

 ,, a result of proteid decomposition 

 outside the body, 759 



Umbilical cord, formation of, 1515 

 arteries, growth of, 1514 

 ,, ,, pressure in, 1521 



,, venous blood in the, 1522 



,, vein, pressure in, 1521 

 Undulations, respiratory, phenomena of, 



614, 618 



,, luminous, 1222 



Unit, physiological, denned, 6 

 Urari, the nature of its action, 57, 86 

 ,, its effect on cells of pigment epi- 

 thelium of retina, 1208 

 ,, diabetes in frogs produced by, 



733 



Urea, a constituent of the blood, 51 

 ,, chemical relations of, 649 

 as nitrogenous waste, 102, 632, 



750, 754, 759 



absent from muscle, 102, 751 

 its relations to kreatin, 750, 752 



