Question

current attempt in progress
which of the following statements about an ecg is incorrect?
the p wave represents atrial depolarization.
the qrs complex represents ventricular depolarization.
the t wave represents ventricular repolarization.
the p - q interval represents the conduction time from the start of atrial excitation to the beginning of ventricular excitation.
the s - t segment represents the time when ventricular contractile fibers are depolarized during the repolarization phase of the action potential.

Explanation:

The S - T segment represents time when ventricular contractile fibers are fully depolarized, not during repolarization phase of action potential. Other statements are correct facts about ECG.

Answer:

The S - T segment represents the time when ventricular contractile fibers are depolarized during the repolarization phase of the action potential.