1592 



INDEX. 



Tissues, contractile, 54-168 

 nervous, 169-185 

 vascular, 186-352 

 digestive, 355-525 

 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 nervo us 



system, 923 

 Tones, musical, fundamental and partial, 



1362 

 Tongue, papilla 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 



Trabeculas 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 filtration, 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 seminiferi, see Tubules, seminal 

 Tunicse, 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 



