24 of 30 -Ranking Activity: A cardiac contractile cell action potential Part A 4. Rank from the first to the last steps to describe the correct order of events of a cardiac contractile cell action potential. Refer to the graph of a contractile cell action potential as you rank the events. Reset Help Nat Voltage-gated ECF ECF ECF ECF Ca+ channel K+ channel Nat channel Kt channel- K+ Gytosol Cytosol Cytosol Course Chat

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