566 



PHYSIOLOGY 



Ichthulin, 23 

 Ictus cordis, 222 

 Idioplasm, 50 

 Immunity, 154 

 Impulse, heart, 221 

 Inanition, 65 

 Inflammation, 176 

 Infundibula, lung, 403 

 Inhibitory centres, heart, 336 



centres, respiration, 452 



nerves, heart, 322 

 Inorganic constituents, cell, 37 



constituents, serum, 131 

 Inotropism, heart, 326, 330 

 Inspiration, 409 

 Inspiratory centres, 454 



muscles, 409 



Intercartilaginous muscles, 414 

 Intercostal muscles, 411 

 Intermolecular oxygen, 394 

 Internal respiration, 375 

 Intersystole, 201 

 Intra-abdominal pressure, 427 

 Intracardiac pressure, 201 

 Intrapleural pressure, 428 

 Intrapulmonary pressure, 405, 424 

 Intrathoracic pressure, 406, 427, 436 

 Inversion, sugars, 37 

 Invertase, 33 

 Invertebrate heart, 311 

 Ions, 32 

 lonisation, 142 

 Iron, haemoglobin, 108 



metabolism, bacteria, 65 



spleen, 551 



Ischaemia, active, 342 

 Isoleucine, 27 

 Isotony, 142 



Jecorin, plasma, 130 



Kata-, vide Cata- 

 Katabolism, 43 

 Keratin, 25 

 Kinase, blood, 139 

 Kinases, 30 

 Kinetic energy, 44 

 Knephoplankton, 83 

 Kymograph, 242 



Lactacidase, 34 



Lactase, 34 



Lacteals, 171 



Lactose, 37 



Laevulinic acid, 24 



Laevulose, 37 



Laniarckism, 48 



Laryngeal nerves, respiration, 465 



Larynx, respiration, 419, 421 



Latent life, 65 



systole, 206 



Laughter, mechanism, 438 

 Laws of gases, 378 



of solutions, 141 



Laws of variation, 48 

 Lecithin, 35, 130 

 Leech, coagulation, 124 

 Leucaemia, 116 

 Leucine, 27 

 Leucocytes, blood, 113 



chemistry, 117 



chemotaxis, 116, 178 



coagulation, 138 



diapedesis, 115 



lymph, 513 



marrow, 534 



movement. 115 



narcosis, 178 



origin, 114 



phagocytosis, 115 

 Leucocytosis, 152 

 Leuconuclein, 138 

 Leucyl-glutamic acid, 23 

 Levatores costarum, 410 

 Life, minimal, 67 



physical basis, 11 



potential, 65 



pressure, 71 



temperature, 70 

 Light, a stimulus, 78, 81 

 Limbs, vasomotor nerves, 349, 354 

 Limulus, heart, 311 

 Lipase, 33 



blood, 127 

 Locomotion, arteries, 277 



heart, 224 

 Lungs, foetal, 405 



gas exchange, 387 



movements, 426, 442 



structure, 403 



ventilation, 423, 484, 487 

 Luxus respiration, 473 

 Lymph, 505 



blood-, 512 



cells, 513 



circulation, 515 



composition, 513 



filtration, 521 



formation, 519 



gas, 514 



hearts, 516 



injection of, 533 



liver, 514 



post mortem, 515 



quantity, 514 



secretion, 519 



sources, 512 



tissue-, 512 



transudation, 524 



velocity, 516 

 Lymphagogues, 523 

 Lymphatic, canaliculi, 509 



cavities, 514 



fistula, 513 



pressure, 516 



stomata, 510 



system, 505 



