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Diagram how an action potential generates contraction (excitation-contraction coupling) in a cardiac muscle cell. Compare and...

Diagram how an action potential generates contraction (excitation-contraction coupling) in a cardiac muscle cell. Compare and contrast cardiac muscle cell action potentials (both autorhythmic and contractile cells) and contraction with those in skeletal and smooth muscles.  (be sure to discuss refractory periods & summation/tetanus in each type of muscle).

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