The electrochemical activity of polarization-depolarization is measurable by the ECG. True or False. The cell fires when the action potential is reached. The cell is polarized during this process....

The electrochemical activity of polarization-depolarization is measurable by the ECG. True or False.

The cell fires when the action potential is reached. The cell is polarized during this process. True or False.

Which one of the following has the fastest pace making function:

A. SA node

B. Atrial myocytes

C. AV node

D. Bundle branches

E. Ventricular myocytes