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Transmit action potentials fast (through intercalated disks), synthesize more ATP (because of a large number of mitochondria), and have readier access to ions in the interstitum because of an (abundance of transverse tubules). These factors enable the myocardium to work constantly.

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1. Transmit action potentials fast (through intercalated disks), synthesize more ATP (because of a large number of mitochondria), and have readier access to ions in the interstitum because of an (abundance of transverse tubules). These factors enable the myocardium to work constantly.





 
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