Question

when sodium channels are fully open, the membrane of the ventricular cardiac muscle cells
multiple choice
sharply hyperpolarizes
sharply repolarizes
sharply depolarizes
plateaus
has no response

Explanation:

When sodium channels in ventricular cardiac - muscle cells open fully, sodium ions rush into the cell. This influx of positively - charged sodium ions causes the membrane potential to become less negative (more positive), which is the process of depolarization.

Answer:

sharply depolarizes