Kalman Greenspan

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Conventional intracellular recordings from the bundle of His and right bundle branch of the canine heart demonstrated that the slope of diastolic depolarization is markedly depressed by superfusion with relatively small concentrations (4—8 jug/ml) of acetylcholine. As the cells become less automatic, take-off potential increases, rise time of phase 0 is(More)
Action potentials recorded from canine ventricular fibers displayed characteristic alterations in configuration upon abrupt change in the cycle length. After a relative prolongation of the diastolic interval, abbreviation of phase 2 and slowing of phase 3 were consistently observed, while a relative shortening of diastole was terminated by an action(More)