INDEX. 



453 



Sweat, how secreted, 695, 699 



,, composition of, 696 

 Sweat-fibres of different animils, course 



of, 701 

 Sweat glands, their structure, 690 



action of pilocarpin on, 701 

 Sweat-nerves, 701 

 Sweating in lower animals, 700 



,, nervous mechanism of, 699 

 ,, a reflex act, 701 

 Sylvius, aqueduct of, 930 

 Sympathetic system, plain muscular 

 fibres supplied by, 

 160 

 ,, ,, its connection with 



spinal nerves, 171 

 ,, ,, ganglia of the, 176 



Syntonin, 97 

 Systole, auricular and ventricular, 228, 



229, 251 



,, ventricular, a simple contrac- 

 tion, 237 



,, and diastole, comparative dura- 

 tion of, 249, 251 



,, amount of blood driven by each, 

 201, 253 



Tactile sensations, iv. 274 



,, ,, localization of, iv. 276 



Tambour, Marey's, 241 

 Tarsus of the eyelids, iv. 172 

 Taste- buds, their distribution, iv. 255 



,, their nervous connections, iv. 257 

 Taurocholic acid, 423 

 Tears, secretion of, iv. 174 

 Tectorial membrane, iv. 221, 234 

 Teeth, order of their appearance, iv. 408 

 Tegmental system, fibres of, 991 994 

 Tegmentuni, grey matter of, 981 



,, connections of the, 992 



,, nature of its functions, 



1112 



Temperature of living bodies, 2 

 as affecting clotting, 20 

 irritability, 143, 145 

 ,, plain muscle, 161 

 ,, ciliary action, 165 

 vase-motor fibres, 315, 



332 

 ,, action of gastric juice, 



372 



,, action of rennet, 374 

 ,, point of saturation of gas, 



550 

 ,, absorption of oxygen by 



liquids, 572 

 ,, the cutaneous vessels, 



699 



perspiration, 694, 700 

 storage of glycogen, 718 

 sense of taste, iv. 261 

 of expired air, 550 

 regulation of, by evaporation 

 from the skin, 699 



Temperature, regulation of, by variations 



in loss of heat, 810,812 



,, ,, by the nervous system, 



814, 815 



,, of cold-blooded animals, 809 



,, of warm-blooded animals, 810 



,, normal^ range of, 817 



,, high, phenomena of death 



from, 818 



,, low, effects of, 819 



,, its relation to amount of food 



needed, 843 



,, of body, maintenance of, 814 



,, sensations of, iv. 278, 292 



, , terminal organs for sensations 



of, iv. 291 

 , , sense of, in parts other than 



external skin, iv. 280 

 Tendon reflexes, "knee-jerk," 913, 926 

 Tenonion cavity and Tenon's capsule, 



iv. 167 

 Terminal organs, special sensations due 



to, iv. 288 



,, ,, for sense of touch, iv. 288 



,, ,, for sense of pressure, iv. 290 



,, ,, for sense of heat different 



from those for sense of 



cold, iv. 291 



,, ,, cutaneous, their nature, 



iv. 293 

 Testis, origin of, iv. 364 



,, general structure of, iv. 365 

 lymphatics of, iv. 369 

 Tetanic contraction, its nature, 58 

 Tetanus, phenomena of, 78, 81, 139 



,, carbonic acid evolved during, 



103 

 ,, exhaustion of irritability from, 



149 



Thalamus, optic, 971 

 Thermopile, various forms of, 105 

 Thermotaxis, centre for, 815, 816 

 Thirst, sensation of, iv. 885 

 Thoracic duct, characters of lymph from 



the, 497 

 Thorax, effect on blood-flow of pressure 



in the, 615, 618 



Thrombi, white, their nature, 48 

 Tliymus body, structure of the, 767 



,, nature and functions, 768 

 ,, its size in infancy, iv. 407 

 Thy oid body, 761765 



structure of, 761 

 ,, functions of, 763 

 ,, diseases connected with, 764 

 ,, in infancy, iv. 407 

 Thyroid-arytenoid muscles, iv. 318, 328 

 Thyroid cartilage, iv. 308 

 Time taken by cerebral processes, 11 

 Tissues not indispensable for life, 3 

 ,, classification of, 6 

 ,, built up by the blood, 13 

 similarity of histological elements 

 of, 41 



