8;8 



INDEX. 



MUSCLE. 



M uscle continued. 



chemical changes in, 155 

 composition of, 159 



clot, ib, 



columns, 87 



contractility, 106 



curves, 119, 122124 



development, 95 



dynamometer, 137 



elasticity, 131 



electrical phenomena of, 139 et seq., 

 184 



extensibility of, 131 et seq. 



fatigue, effect of, 124, 156 

 curves, 124 



Hensen's line, 89 



involuntary, 84 (see 161 et seq.) 



irritability, 108 

 evidence of, ib. 



nerves of, 93 



plain, 94 



plasma, 159 



red, 93 



response to stimuli, 109 et seq., 184 



rigor, 157, 163 



sarcolemma, 85 



sensory nerve-endings in, 698 



serum, 159 



shape, changes in, 128 



skeletal, 85 



sound, developed in contraction of, 128 



spindle, 93, 664. See Neuro-musoular 

 spindle. 



stimuli, 109 



striated, structure of, 87 et seq. 



tetanus, 128 

 negative variation of, 147 



thermal changes in, 153 



tonus, 136, 163 



twitch, 122 (see 147) 



voluntary, 85 (see 161 et seq) 



wave, 125, 148 



work of, 136 



Muscles, reciprocal action of antago- 

 nistic, 664 



Muscular action, conditions of, 138 

 Muscular contraction, in, 123 



effect of two successive stimuli, 126 

 of more than two stimuli, 127 



voluntary tetanus, 128 

 Muscular fibres, 



development, 95 



plain, 84 



transversely striated, ib. 

 Muscular force, 136 



irritability, 108 



sense, 703 



tissue, 84 et seq. 



composition of, 160 

 Muscularis mucos*, 341, 443,449, 450, 



45.4 



Musical sounds, 736 

 Mydriatics, 767 



NERVES. 



Myeloplaxes, 59 

 Myelospongium, 841 

 Myograph, 1 1 2 



Helmholtz', 118 



pendulum, 120 



spring, ib. 



transmission, 129 (see 172) 

 Myopia, or short-sight, 763 

 Myosin, 159 

 Myotics, 767 

 Myosinogen, 159 

 Myxoedema, 331 (see 336) 



N. 



Nails, 572 



Nasal cavities in relation to smell, 710 



Nasmyth's membrane, 74, 8l 

 Near point, 761, 762 

 Nerve-cells, structure of, 191 et seq. 

 Nerve-centres, 188 et seq. Set Cere- 

 bellum, Cerebrum, etc. 



ano-spinal, 528 



cilio-spinal, 666 (see 767) 



defaecation, 528 



deglutition, 520 



erection, 666 



micturition, 546, 666 



parturition, 666 



respiratory, 357 



secretion of saliva, 474 



speech, 678 



vaso-motor, 298, 661 

 Nerve-corpuscles, 191 et seq. 



bipolar, 192 



unipolar, ib. 

 Nerve epithelium, 692 

 Nerve-impulse, velocity of, 1 72 

 Nerves, 97 



accelerator, 164 



action of stimuli on, 109, 546 



afferent, 97, 164 



axis-cylinder of, 99 



cells, 98, 191 



centrifugal, 163 



centripetal, 164 



cerebro-spinal, 189, 602 



changes in, during activity, 172 



classification, 163 



conductivity of, 178, 187 



cranial, 189, 625 et seq. 



degeneration, 167, 199 

 reaction of, 1 86 



development, 841 



direction of a nerve impulse, 173 



efferent, 97, 163 



electrical, 164 

 stimulation of, 184 



fibres, 98 

 development of, 104 



