The ST segment represents
A)the time between atrial depolarization and atrial repolarization.
B)the time it takes the Purkinje fibers to repolarize.
C)the time from the beginning of atrial depolarization to the beginning of ventricular depolarization.
D)the time between ventricular depolarization and the beginning of ventricular repolarization.

Question

Quizplus · Accepted Answer

The ST segment represents the time between ventricular depolarization and the beginning of ventricular repolarization. This period is significant because it is when the ventricles are contracted and there is pressure in the heart's chambers, which can affect blood flow and oxygen supply to the heart muscle. Changes to the ST segment can indicate various heart conditions, including myocardial infarction. The other options are not accurate descriptions of the ST segment.

The ST Segment Represents