Repolarisation of the ventricles is represented by

Options

A. P-wave
B. QRS-wave
C. T-wave
D. Both P and T-wave

Answer

To answer the question regarding what represents the repolarization of the ventricles in an ECG, we can break down the information step by step:

### Step-by-Step Solution:

1. **Understanding the ECG Waves**: The electrocardiogram (ECG) consists of several waves, each representing different electrical activities of the heart. The main waves are the P wave, QRS complex, and T wave.

2. **Identify the P Wave**: The P wave represents atrial depolarization. This is the electrical impulse that causes the atria to contract (atrial systole).

3. **Identify the QRS Complex**: The QRS complex represents ventricular depolarization. This is the electrical impulse that leads to the contraction of the ventricles (ventricular systole).

4. **Identify the T Wave**: The T wave represents ventricular repolarization. This is the process where the ventricles recover from depolarization and prepare for the next heartbeat. It signifies the relaxation of the ventricular muscles (ventricular diastole).

5. **Conclusion**: Therefore, the repolarization of the ventricles is represented by the T wave in the ECG.

### Final Answer:
The repolarization of the ventricles is represented by the T wave.

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