Any process that activates or increases the frequency, rate or extent of membrane depolarization during AV node cell action potential.
Synonyms:
exact_synonym:
positive regulation of membrane depolarization during AV node cardiac muscle cell action potential; positive regulation of membrane depolarization during atrioventricular node cardiac muscle cell action potential; up regulation of membrane depolarization during AV node cardiac muscle cell action potential; up regulation of membrane depolarization during AV node cell action potential; up regulation of membrane depolarization during atrioventricular node cardiac muscle cell action potential; upregulation of membrane depolarization during AV node cardiac muscle cell action potential; upregulation of membrane depolarization during AV node cell action potential; upregulation of membrane depolarization during atrioventricular node cardiac muscle cell action potential
narrow_synonym:
activation of membrane depolarization during AV node cardiac muscle cell action potential; activation of membrane depolarization during AV node cell action potential; activation of membrane depolarization during atrioventricular node cardiac muscle cell action potential