| COLUMN I | COLUMN II | ||
| a | P-wave | i | Depolarisation of ventricles |
| b | QRS complex | ii | Repolarisation of ventricles |
| c | T-wave | iii | Coronary ischemia |
| d | Reduction in the of size of T-wave | iv | Depolarisation of atria |
| v | Repolarisation of atria |
List I | List II | ||
|---|---|---|---|
| A | P wave | I | Heart muscles are electrically silent. |
| B | QRS complex | II | Depolarisation of ventricles. |
| C | T wave | III | Depolarisation of atria. |
| D | T-P gap | IV | Repolarisation of ventricles. |