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Excitation-Contraction Coupling and Relationship to Action Potentials Cardiac excitation-contraction coupling (ECC) is the process by which the electrical activation of cardiac myocytes leads to the activation of contraction. – In the broadest sense, ECC refers to everything from the initial…

Acknowledgment We honor the memory of Dr. Lionel H. Opie who contributed to previous versions of this chapter over the years. Additional content is available online at Elsevier eBooks for Practicing Clinicians Microanatomy of Contractile Cells and Proteins Ultrastructure of…