Why is the calcium plateau represented as a flat portion of the EKG (0 mV). Group of answer choices All the cells are depolarized so the maximum difference between the + and - leads exists Half the cells are depolarized and half the cells are at rest which cancels out and gives a reading of 0 mV between the + and - leads The cells closest to the + electrode and - electrode are repolarized giving us no difference between the + and - leads All the cells are depolarized so there is no difference between the + and - leads The calcium plateau is not 0 mV but is actually at the maximum peak of the EKG waveform
Added by Amber S.
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During the calcium plateau phase (phase 2 of the cardiac action potential), the cardiac muscle cells remain depolarized due to the influx of calcium ions, maintaining a relatively stable membrane potential. Show more…
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