Rhythm Is It Ion Channels Ensure The Heart Keeps Time

Electrical signals regulate the rhythmic contractions of the heart muscle and thus control heartbeat. If the signals go awry, the consequences can be lethal. LMU researchers have now delineated how specific ion channels in the membranes of cardiomyocytes ensure that the heart beats in and on time. The heartbeat is the result of rhythmic contractions of the heart muscle, which are in turn regulated by electrical signals called action potentials...

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