Question

Atrial depolarization is represented on the ECG by the:

A) P wave
B) ORS
C) T wave
D) J point

Answer 1

Atrial depolarization is represented on the ECG by the P wave.

Step-by-step explanation:

The ECG, or electrocardiogram, is a test that records the electrical activity of the heart. It helps doctors diagnose heart conditions and monitor the heart's health. In an ECG, the P wave represents atrial depolarization. Depolarization refers to the electrical activation of the heart muscle cells. In this case, it specifically refers to the electrical activation of the atria, which are the upper chambers of the heart.

Answer 2

The P wave represents atrial depolarization on the ECG.

Step-by-step explanation:

The atrial depolarization is represented on the ECG by the P wave. The P wave represents the depolarization and contraction of the atria as they pump blood into the ventricles. The P wave is followed by atrial contraction (systole), and it extends until the QRS complex.