522 



ELECTRO-PHYSIOLOGY 



muscle, 416 ; position of secondary 

 nerve, 417 ; summation of stimuli, 



421 ; discharged by closing and open- 

 ing tetanus, 422, and vital tetanus, 



422 ; isotonic and isometric, 82 



UNDER-PROPPING, effect on twitch, 121 



VAGUS, action on the heart, 433 

 Veratrin, action on striated muscle, 107, 

 265 



Voltaic alternative, in muscle, 224, 292 

 Vorticella, stalk muscle, 4 



WATER rigor, 357 



Wave of contraction, 151 ft'., 168 ; of excita- 

 tion, 373 ; relation to contraction 

 wave, 376 



Worms, muscles, 12 ; electrical excitation 

 of cutaneous muscular integument, 

 240 IT. 



THE END 



Printed by R. & R. CLARK, LIMITED, Edinburgh 



