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प्रश्न
Match List I with List II:
| List I | List II |
| A. P - wave | I. Beginning of systole |
| B. Q - wave | II. Repolarisation of ventricles |
| C. QRS complex | III. Depolarisation of atria |
| D. T - wave | IV. Depolarisation of ventricles |
Choose the correct answer from the options given below:
विकल्प
A - IV, B - III, C - II, D - I
A - II, B - IV, C - I, D - III
A - I, B - II, C - III, D - IV
A - III, B - I, C - IV, D - II
MCQ
जोड़ियाँ मिलाइएँ
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उत्तर
A - III, B - I, C - IV, D - II
Explanation:
| List I | List II |
| A. P - wave | III. Depolarisation of atria |
| B. Q - wave | I. Beginning of systole |
| C. QRS complex | IV. Depolarisation of ventricles |
| D. T - wave | II. Repolarisation of ventricles |
The P wave in an ECG indicates atrial depolarisation. The Q wave indicates the start of systole. This is the initial deflection following the P wave and may not always be present. The QRS complex indicates ventricular depolarisation, which causes ventricular contraction. The T wave indicates ventricular repolarisation. This signifies the start of ventricular diastole.
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