What is an advantage to the longer duration of cardiac action potential compared to the skeletal muscle action potential?

What is an advantage to the longer duration of cardiac action potential compared to the skeletal muscle action potential?

The Correct Answer is

The longer duration prevents tetanic contraction, which ensures that the heart chambers will relax and refill with blood before the next contraction.

Reason Explained

The longer duration prevents tetanic contraction, which ensures that the heart chambers will relax and refill with blood before the next contraction. is correct for What is an advantage to the longer duration of cardiac action potential compared to the skeletal muscle action potential?

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