748 



INDEX 



Symbiosis, 22. 

 Sympathetic fibers, 686. 



afferent, 689. 



connection of, with peripheral ganglion 

 cells, 582, 686, Fig. 301. 



course of, 687. 



postganglionic, 687. 



preganglionic, 686. 



regeneration of, 689. 

 Sympathetic ganglia, 582. 



connections of, 686, Fig. 301. 



reflexes through, 583. 

 Sympathetic nerves, 685. 



accelerator, of heart, 191, 688. 



as vasomotor nerves, 231, 234, 685, 688. 



of intestine, 288. 



of pancreas, 269. 



of receptaculum chyli, 349. 



of salivary glands, 258. 



of sebaceous glands, 394. 



of stomach, 284, Fig. 114. 



of thoracic duct, 349. 



of urinary bladder, 393. 



Sympathetic vibration, 492; see also Reso- 

 nance. 

 Syntheses in animals, 24; see also Assimilation, 



in plants, 23. 



of nonliving substances, 65. 



organic, 24. 

 Syntonin, 74. 



System of organs defined, 30. 

 Systole, auricular, duration of, 176. 



definition of, 162. 



ventricular, duration of, 176. 



Tabes dorsalis, 472. 



Tactile corpuscles, 468. 



Tactile sense, area of, in cortex, 651, 652. 



Tail, vasomotor nerves for, 233. 



Talbot's proposition, 539. 



Tambour, receiving, 12, Fig. 10. 



recording, 11, Fig. 9. 

 Tartaric acid, 377. 

 Tartronic acid, 377. 

 Taste, cortical area for, 653. 



definition of, 451. 



effect of cocaine, eucaine, etc., on, 485. 



qualities of, 484, 485.. 



sense of, 483. 

 Taste buds, 483. 

 Taste nerves, 484. 



reaction time to, 674. 

 Taste zone on tongue, 483, Fig. 190. 

 Taurin, 253, 373. 

 Taurocholic acid, 253. 

 Tears, layer of, on cornea, 508. 

 Tecto-spinal tract in the cord, 593. 

 Telencephalon or endbrain, 600, 601; see also 

 Cerebrum. 



Temperature, action of, on heart, 184, Fig. 66. 

 effect of, on elimination of CO'2 and water 



vapor, 397, 403. 

 influence of, on elementary organisms, 28. 



on metabolism, 114. 

 of birds, 398. 



of cold-blooded animals, 46. 

 of human body, 398, 399. 

 after death, 401, Fig. 149. 

 cause of variations in, 399. 

 importance of clothes in preserving, 405. 

 importance of thyroid for, 361. 

 in fasting, 95. 

 mode of recording, 398. 

 normal compared with COz excretion, 400, 



Fig. 148. 

 normal diurnal variations of, 399, Fig. 



147. 



normal for man, 398. 

 regulation of, 406. 

 supranormal, 401. 

 of mammals, 398. 



constancy of, 401. 

 Temperature nerves, 461. 

 Temperature sensations, 458. 

 Temperature sense, area for, in cortex, 652. 



tract for, in cord, 597. 

 Temperature spots or points on the skin, 459, 



Fig. 182. 



topographical distribution of, 460, Fig. 183. 

 Temporal convolutions, 639, Fig. 289; 653, 655. 

 Tendon reflexes, 587. 



Tension of gas in liquid, method of, 335. 

 Tension of gas in blood, method of, 341. 

 I Tension of muscle, 414, 437. 

 Tension, osmotic, see Osmotic pressure. 

 Tensor tympani muscle, 497. 

 Terminal myelogenetic regions of cortex, 667. 

 Testes, 692. 



extirpation of, 357, 692. 

 internal secretion of, 357. 

 Testicular extract, 357. 

 Tetanus, 429, Fig. 166; 430, Fig. 167; 433. 

 explanation of, 430. 

 number of stimuli necessary for, 429. 

 of red and white muscles, 430, Fig. 167. 

 Ritter's, 421. 

 secondary, 433. 

 work of muscles in, 439. 

 Wundt's, 421. 



Tetra-oxyamino-caproic acid, 374. 

 Thalamencephalon, 600. 

 Thalassicola nucleata, 18, Fig. 15. 



mode of movement of, 45. 

 Theca folliculi, 695. 

 Thermotaxis, 59. 

 Thigmotaxis, 56. 



of spermatozoa, 56, 697. 

 Thigmotropism, .64. 



