effect:
staircase phenomenon..
subsequent stimuli fall immediately after the relaxation the preceeding one(seperate SMT occur)
colonus(incomplete tetanus):
subsequennt stimuli fall immediately during relaxation of the preceeding one(contracture-state that contraction and incomplete relaxation)
tetanus:
subsequent stimuli fall immediately during contraction of preceeding one(in human)
factor for tetanus:
~type of muscle-red or slow muscles fiber
~anticholestrase-prevent hydrolysis of the a.ch
~factor that prolong the SMT(cooling and fatigue)