red arrow is pointing to:

A. threshold
B. resting membrane potential
C. +30 mv
D. -55 mv

which is roughly:
A. -70
B. -55
C. +30
D. -80

True/false: During phase 2 of the action potential, sodium is diffusing out of the cell through chemical gated ion channels.

1 answer

False: During phase 2 of the action potential, sodium ions are actually diffusing into the cell through voltage-gated ion channels.