INDEX 



543 



Intracardiac inhibitory mechanism, 517 

 Invert-sugar, 194 

 Ions, 25, 222, 259, 363 

 Iris, 343, 521 



movements of, 343 

 Iron, 30, 256 

 Irradiation in cortex, 71 

 Irritability, 37 

 Island of Keil, 64, 72 



of Langerhans, 205, 226 



JAMES, WILLIAM, 351, 401, 409 

 Jejunum, 197 



Joints, afferent endings in, 332 

 Judgment, 418 



KARYOKINESIS, 45. See Mitosis. 

 Katabolism, 220 

 Kellar, Helen, 350, 361 

 Kidneys, 245, 248 



internal secretion of, 228 



work of, 228, 240 

 Kinase, 204 

 Kinesthesia, 329 

 Kinesthetic centers, 71, 334 

 Knowing, 414 

 Knowledge, 417 

 Krause, end-bulbs of, 330 

 Kymograph, 472, 473 



LABOR, 446 



Laboratory-physiology, 459 

 Labyrinth, bony, 347 



distribution of nerves in, 347 



membranous, 347 

 Lactation, 447 

 Lacteals, 218 



absorption by, 218 

 Lactic acid, 241 

 Lactose, 30, 32, 154 

 Langerhans, islands of, 205, 226 

 Language, 396, 417, 420 

 Lanolin, 322 



Lantermann's segments, 57 

 Large intestine, 209 



movements of, 210 

 nerves of, 210 

 Laryngeal nerves, 396 

 Larynx, 395 



Latent-periods of muscle, 482, 495 

 Laughter, 409 

 Lecithin, 30, 32 

 Lens, 341 



Lenses, optical, 524 

 Leucin, 204 

 Leukocytes, 257, 266 



functions of, 268 



Leukocytes, migration of, 269 



number of, 268 

 Leukocytosis, 268, 444 

 Levulose, 218 



Lieberkiihn, follicles of, 198 

 Life characterized by movement . 3s 



origin of, 18 

 Light, 42, 344 



organ, 42, 43 



protection from, by pigmentation, 

 326 



vibrations, 337 

 Linin, 22 

 Lipase, 194, 206 

 Lipochrome, 30, 156 

 Liver, 209, 210 



excretory action of, 209 

 Load, influence of, on contraction, 494 



nprmal, of muscle, 495 

 Lobules, lung, 104 

 Local sign, 351, 357 

 Location-sense, 351 

 Locomotion, 392 



centers of, 74, 78 



Longitudinal movements of gut, 199 

 Lungs, 105 



capacity of, 106 



of the chameleon, 477 

 Lymph, 254 



as lubricant, 274 



composition of, 255 



corpuscles of, 266 



flow, causes of, 306 

 in childhood, 451 



glands (nodes), 267, 306 



heart of frog, 508 



movements of, 306 



origin of, 271 

 Lymphatics, 305, 308 



valves of, 308 

 Lymphocytes, 266 

 Lymph-spaces, 307 



M 



MACULA acustica, 347 



lutea, 337 

 Magnification of lung-area by alveoli, 105 



of gut-area, by villi, 199 

 Maltose, 189 

 Mammary glands, 447 



lymphatics of, 309 

 secretion, 447 

 Manometers, 285 

 Margin, of safety in diet, 140 

 Marrow of the bones, 266 

 Mast-cells, 267 

 Mastication, 176 



muscles of, 176 

 Maturity, 453 

 Maximum stimulus, 485 

 Meats, 136, 149 



Mechanics of the circulation, 472 

 Medulla oblongata, 75, 76, 88 J 



