membrane depolarization during atrial cardiac muscle cell action potential
The process in which atrial cardiac muscle cell membrane potential changes in the depolarizing direction from the negative resting potential towards the positive membrane potential that will be the peak of the action potential.
GO:0086012
membrane depolarization during cardiac muscle cell action potential
is_a
GO:0086014
atrial cardiac muscle cell action potential
part_of
atrial cardiac muscle cell depolarization
broad
atrial depolarization
related
electrocardiogram PR interval
related