During the rising (depolarizing) phase of a neuronal action potential,

A. PK+ becomes much greater than PNa+.
B. PNa+ becomes much greater than PK+.
C. PK+ is the same as PNa+.
D. Na+ efflux (flow out of the cell) occurs.
E. K+ flows rapidly into the cell.


B

Anatomy & Physiology

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