T wave

Definition

The T wave represents the repolarization of the ventricles in an electrocardiogram (ECG) during a cardiac cycle. It is an essential component in diagnosing heart rhythm and function.

Related terms

Electrocardiogram (ECG):

A test that measures the electrical activity of the heart to show any abnormalities.

Repolarization:

The process by which cells regain their negative internal charge, preparing for another action potential.

Ventricles:

The two lower chambers of the heart responsible for pumping blood out of the heart to the lungs and other parts of the body