Regarding the cardiac muscle action potential, which statement is INCORRECT?

Question

TuteeHUB · Accepted Answer

chloride ions may enter cell during phase 1

TuteeHUB · Answer

sodium ions enter via  fast  channels in phase 0

TuteeHUB · Answer

sodium ions enter via  slow  channels in phase 2

TuteeHUB · Answer

relative refractory period ends in phase 3

TuteeHUB · Answer

class I anti-arrhythmics reduce the slope of phase 4

1.	Regarding the cardiac muscle action potential, which statement is INCORRECT?
A.	sodium ions enter via fast channels in phase 0
B.	chloride ions may enter cell during phase 1
C.	sodium ions enter via slow channels in phase 2
D.	relative refractory period ends in phase 3
E.	class I anti-arrhythmics reduce the slope of phase 4
Answer» B. chloride ions may enter cell during phase 1

Discussion