Describe the effect that increasing the potassium ions initially had on the heart in this activity. Relate this to the resting membrane potential of the cardiac muscle cell. How well did the results compare with your prediction?

When there is an increase in potassium within the cell, depolarization is generated

Explanation:

Depolarization is the intracellular increase of potassium in the cardiac cell, this is how the resting potential is reached, this state of the cell refers to the fact that the cell does not execute or transmit any signal, it is in a refractory state of signals, since it does not capture any, this is how it prepares and recovers for future action potential.

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