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STEP 1

Threshold stimulus to -55mv

Stimulus

STEP 2

Na+ channels open

Channel open

STEP 3

Na+ ions flood in

flood in

STEP 4

At +30mv, Na channels close and K ions channels open

K ions

STEP 5

K floods out of the cell

Out of cell

STEP 6

Hyperpolarization to -90mv

Hyper

STEP 7

K channels close and tge resting potential is re-established at -70

Re-established