Chemical Physiology of Contraction in Body and Heart Muscle |
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Page 83
... heart . In vivo , however , they do this in the uterus only , being present in minute concentration in which they have no action on the heart . Substances 1-6 in the listing diminish or abolish the staircase in the frog heart . They are ...
... heart . In vivo , however , they do this in the uterus only , being present in minute concentration in which they have no action on the heart . Substances 1-6 in the listing diminish or abolish the staircase in the frog heart . They are ...
Page 84
... heart back to 5 ° C , which for long periods of the year is often a normal temperature for the frog , the heart has no staircase at all . If we could raise a rabbit's heart 15 ° C above its body temperature to 55 ° C , I expect it would ...
... heart back to 5 ° C , which for long periods of the year is often a normal temperature for the frog , the heart has no staircase at all . If we could raise a rabbit's heart 15 ° C above its body temperature to 55 ° C , I expect it would ...
Page 95
... frog heart during the summer , it is necessary to eliminate vagal action by atropinization . Though adrenaline and ACH are among the most potent sub- stances which act on the frog heart , they are by no means the only ones . In fact ...
... frog heart during the summer , it is necessary to eliminate vagal action by atropinization . Though adrenaline and ACH are among the most potent sub- stances which act on the frog heart , they are by no means the only ones . In fact ...
Contents
INTRODUCTION I | 1 |
PART I | 7 |
Problems of Molecular Engineering | 9 |
Copyright | |
24 other sections not shown
Common terms and phrases
A. V. Hill abolishes the staircase acid Acta actin and myosin actin filament actomyosin adrenaline autone band beat Biol Biophys cell changes charge Chem complex contractile matter contracture Csapo curve decrease depolarization digitalis digitoxine dissociation drug E band elastic modulus equilibrium equilibrium length excitation experiments extracted favorable condition folding free energy frequency frog heart function G-actin Gergely globules glycerinated psoas Hajdu heart muscle high affinity increase inotropic intracellular ionic atmosphere ionic concentrations ions isometric isotonic length 80 maximal means membrane meromyosins Mommaerts muscle fiber muscular contraction myosin molecules particles perfusion fluid phosphate Physiol physiological presence of ATP present Proc produce progesterone protein protofibrils rabbit reaction relaxation rest length resting muscle serum shortening shown shows slope solution sterols straight Straub stretch structure substances superprecipitation Szent-Györgyi temperature tension developed thermodynamic threads tion trigger uterus veratrine viscosity