732 



INDEX 



Inhibition of reflexes, 577. 



of ventricle, 189. 

 Inhibitory centers, 579. 

 Inhibitory nerves, 564. 



of gastric glands, 263. 



of intestinal glands, 276. 



of intestinal movements, 288, 289, 290. 



of heart, 188 seq. 

 centers for, 195. 

 course of, 191, Fig. 67; 681. 



of pancreas, 269. 



of stomach musculature, 284. 

 Inoculation, protective, 29. 

 Inorganic foodstuffs, 83. 

 Inorganic substances, see Mineral substances. 



absorption of, 139, 307, 



of blood, 154. 



of diet, 139. 



of food, 83. 



of milk, 702, 



of urine, 384. 



Inotropic effect of vagus on heart, 189. 

 Inosinic acid, 413. 

 Inosit, 413. 

 lodin, amount of, in blood of dog, 351. 



as constituent of thyroid gland, 26, 362. 

 lodothyrin, 362. 

 Ions, dissociation of, 32. 



permeability of cells to, 34, 35. 



relation of, to sense of taste, 485. 



stimulating effects of, 53. 

 Insensible perspiration, 397. 

 Inspiration, influence of, on arterial blood 

 pressure, 229. 



pressure changes in air passages in, 321. 



in thoracic cavity in, 312. 

 Inspiratory muscles, 315, 316. 

 Insula, see Island of Reil. 

 Intercellular bridges, 62, Fig. 36. 

 Intercostal muscles, 315, 324. 

 Interference of sound waves, 501. 

 Intermediary myelogenetic regions of the cor- 

 tex, 667. 

 Internal capsule, motor fibers in, 637, Fig. 287; 



647, Fig. 292. 

 Internal secretion, definition of, 356. 



of adrenal bodies, 364. 



of kidneys, 367. 



of ovaries, 358. 



of pancreas, 362. 



of pituitary body, 367. 



of spleen, 368. 



of testes, 357. 



of thyroid, 358. 

 Interrupter, automatic, of induction coil, 421, 



Fig. 159; 422, Fig. 160. 

 Intersystole, 170, Fig. 57; 174. 

 Intoxication, 30. 

 Intracardial ganglion cells, 186. 



Intracardial pressure, 169, Fig. 56. 

 Intracranial pressure, 678. 

 Intrathoracic pressure, 310. 

 data for, in man, 312. 

 demonstration of, 311, Fig. 120. 

 methods for determining, 311 

 Intrauterine pressure, 698, 699. 

 Intravascular clotting, 159; see also Coagula- 

 tion. 



Inversion of disaccharides, 81. 

 Intestinal epithelium and absorption of fat r 



304, Fig. 118. 



Intestinal fistulse, 243, 295. 

 Intestinal gases, 295. 

 Intestinal glands, 276. 

 Intestinal juice, 255. 

 Intestinal movements, 286, 288. 

 Intestinal putrefaction, 297, 298. 

 Intestine, large, absorption in, 302 

 digestion in, 277, 298. 

 extirpation of, 298. 

 innervation of, 289, 290. 

 movements of, 289. 

 small, absorption in, 302 seq. 

 digestion in, 294. 

 extirpation of, 298. 

 innervation of, 288. 

 movements of, 286. 

 Iris, 527. 



innervation of, 528. 



movements of, induced from cortex, 658. 



protrusion of, in accommodation, 531, Fig. 



226. 



Iron, absorption of, 307. 

 elimination of, 308. 

 in chlorophyll, 24. 

 in haemoglobin, 152. 

 in red blood corpuscles, 26. 

 Irritability, definition of, 50. 



of nerves, 410. 



Island of Reil, 655, 662, Fig. 296; 668. 

 Isobutyl-amino-acetic acid, 70. 

 Isodynamic quantities of foodstuffs, 93. 

 Isolactose, 39. 



Isolated conduction in nerves, 411. 

 Isomaltose, 246, 383. 

 Isometric contractions, 414. 

 Isotonic contractions, 415. 

 Isotonic solutions, 32. 

 Isthmus, rhombenccphali, 600. 



Jaw, lower movements of, in mastication,. 



278. 



in sucking, 279. 

 Jecorin, 79. 

 Jennings' theory of animal behavior, 55. 



Keratin, 77. 



percentage composition of, 82. 



