744 



INDEX. 



Muscle, recording contraction of, 458 



serum, 442 



single contraction, 459 



stimuli, 449 



striated, 44, 440 



summation, 464 



temperature change during con- 

 traction, 455 



tetanus, 465 



tone, 467 



unstriated, 473 



variations in the single contrac- 

 tion, 462 



wave of contraction, 463 

 Muscle plates of embryo, 675 

 Muscular coordination, 619 



stimuli, different forms of, 449, 



450 



Muscularis mucosse, 118, 143 

 Musical notes or tones, 596 

 Myographs, 458 

 Myopia, 571 

 Myosin, 61, 442 



Nasal ganglion, 526 



Nausea, 547 



Negative after image, 584 



variation of muscle current, 455 

 Nerve, active state of, 499 



ascending and descending cur- 

 rents, 509 



electric properties of, 498 



electric change in, 504 



electrotonus, 504 



force, velocity of, 502 



natural currents in, 493 



optic, 554 



tissue, 39 



roots, 517 



stimulation, negative variation, 

 504 



stimuli, 499 



terminals, 510 

 Nerves, afferent, 40, 496 



cranial, 520 



efferent, 40, 496 



excito-motor, 496 



gray. 496 



inhibitory, 496 



intercentral, 497 



mixed, 517 



motor, 496 



Nerves, reflex, 496 



secretory, 496 



sensory, 496 



special physiology of, 517 



spinal, 517 



vaso-motor, 497 



white, 496 



third pair of, 520 



fourth pair of, 521 



fifth pair of, 521 



sixth pair of, 522 



seventh pair of, 522 



eighth pair of, 527 



ninth pair of, 531 

 Nerve cells, 40 



functions of, 513 



in retina, 519 



bipolar, 513 



multipolar, 43, 513 



unipolar, 518 



corpuscles, 494, 511 



endings, 536 



fibres, 40, 494 



chemistry of, 498 



fatigue of, 506 



irritability of, 506 

 Nerve muscle preparation, 455, 499 

 Nervous system, 494 



medulla oblongata, 628 



reflex action, 617 



spinal cord, 494 

 Neurin, 66 

 Neuroglia, 494 

 Neuro- muscular cells, 39 

 Nitrogen, 73 



in expired air, 348 



in the atmosphere, 347 

 Nose, 551 



development of the, 719 

 Notochord, 658 

 Nucleolus, 25 

 Nucleus, 25, 27 

 Nutrition. 413 



and food stuffs, 88 



tissue changes, 414 



Odontoblasts, 106 

 (Esophagus, 111 



development of, 688 

 Olfactory bulb, 552 



mucous membrane, 552 

 Omphalo-mesenteric vessels, 702 



