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LIST OF TABLES
The Adult Cardiac Action Potential
II Electrophysiological Properties of Embryonic Chick
10 other sections not shown
activation adult heart calibration cardiac catecholamines cells cultured cells in cultured chick embryo chronaxie contractions control action potential cultured cells cultured spherical reaggregates current pulses cycloheximide depolarization ELECTRODE electrotonic interaction elevated K+ embryonic chick hearts embryonic heart exogenous fast Na+ channels field stimulation FIGURE function gap junctions heart mRNA hyperpolarizing impaled cell inactivation increase incubated indicating induced inductive effect input resistance intercalated disc interelectrode distance intracellular isoproterenol loss of TTX medium membrane potential membrane properties messenger RNA microelectrode monolayer culture msec myocardial cells non-pacemaker cells old embryonic overshoot pacemaker cells pacemaker potentials plateau PNPs potential changes present propranolol protein synthesis rate of rise recorded resting potential reversion sensitive to TTX slow channels slow Na+ channels slow response slowly-rising sotalol Sperelakis and Shigenobu spontaneously tetrodotoxin trypsin TTX sensitivity TTX-sensitive fast Na+ tubular heart V/sec ventricle ventricular cells vitro voltage young embryonic young hearts