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Unformatted text preview: Sarcoplasmic reticulum Structure of striated muscle cells Structure of striated muscle cells Mitochondria are tethered to junctional SR Calcium cycles Excitation-Contraction (E-C) Coupling Heart cell structure E-C coupling differs for heart and skeletal muscle Franzini-Armstrong, Biol. Res. 37, 2004 Functional implications of RyR-dHPR relationships in skeletal and cardiac muscles Cardiac cells exhibit distinct Action Potentials Drug effects on E-C coupling and contractility ...
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- Spring '07